Re: [R] Error running lda example from Help File (MASS library )

2009-11-14 Thread Ronggui Huang
I don't run into any problem when runing examples from lda help file.

 sessionInfo()
R version 2.10.0 Patched (2009-11-09 r50375)
i386-pc-mingw32

locale:
[1] LC_COLLATE=Chinese_People's Republic of China.936
[2] LC_CTYPE=Chinese_People's Republic of China.936
[3] LC_MONETARY=Chinese_People's Republic of China.936
[4] LC_NUMERIC=C
[5] LC_TIME=Chinese_People's Republic of China.936

attached base packages:
[1] stats graphics  grDevices utils datasets  methods   base

other attached packages:
[1] MASS_7.3-3 ASRR_0.0-1 ASAtable_0.0-1 QCA3_0.0-3

loaded via a namespace (and not attached):
[1] car_1.2-16   tools_2.10.0



2009/11/15 Greg Riddick riddic...@mail.nih.gov:
 Hello all,

 I'm trying to run lda() from the MASS library but the Help example generates
 the
 following error:


 #Code from example in lda Help file



 # Resulting Error

Error in if (targetlist[i] == stringname) { : argument is of length zero


 My Current R Installation:
 MacOSX: 10.5.8
 R: 2.10.0




 --
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 CRTA Research Fellow

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 National Cancer Institute, Neuro-Oncology Branch
 http://home.ccr.cancer.gov/nob/

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-- 
Wincent Ronggui HUANG
Doctoral Candidate
Dept of Public and Social Administration
City University of Hong Kong
http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] creating custom package and functions

2009-11-10 Thread Ronggui Huang
You can find guidance from Writing R Extensions manual, which is
shipped with R and available on CRAN.

Besides, you can have a look at package.skeleton.


2009/11/11 venkata kirankumar kiran4u2...@gmail.com

 Hi all,
 I am new to R-project
 I have to create custom package and some required functions in that package
 can any one help me how to create a custompackage and how to write my
 function in to that package
 These things I have to use in many places as per requirements in my solution
 please help me to create these custom packages

 thanks in advance

 kiran.

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--
Wincent Ronggui HUANG
Doctoral Candidate
Dept of Public and Social Administration
City University of Hong Kong
http://asrr.r-forge.r-project.org/rghuang.html

__
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[R] RGtk2:::gdkColorToString throws an error

2009-10-20 Thread Ronggui Huang
Dear all,

I try to use RGtk2:::gdkColorToString, but it throws an error:
Error in .RGtkCall(S_gdk_color_to_string, object, PACKAGE = RGtk2) :
  gdk_color_to_string exists only in Gdk = 2.12.0

I know what it means, but don't know to solve this problem because I
don't know where I can download the referred gdk library. Any
information? Thank you.

-- 
HUANG Ronggui, Wincent
Doctoral Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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and provide commented, minimal, self-contained, reproducible code.


Re: [R] CRAN (and crantastic) updates this week

2009-08-24 Thread Ronggui Huang
I like it. Thanks.

2009/8/24 hadley wickham crana...@gmail.com:
 Sorry, we had some problems with the initial sending of our weekly digest
 which resulted in a rather empty email. Here is the correct version:

 CRAN (and crantastic) updates this week

 New packages
 

 * atm (0.1.0)
 Charlotte Maia
 http://crantastic.org/packages/atm

 An R package for creating additive models with semiparametric
 predictors, emphasizing term objects, especially (1) implementation
 of a term class hierarchy, and (2) interpretation and evaluation of
 term estimates as functions of explanatories.

 * gnumeric (0.5-1)
 Karoly Antal
 http://crantastic.org/packages/gnumeric

 Read data files readable into R. Can read whole sheet or a range, from
 several file formats, including the native format of gnumeric.
 Reading is done by using ssconvert (a file converter utility
 included in the gnumeric distribution) to convert the requested part
 to CSV.

 * KFAS (0.3.1)
 Jouni Lehtonen
 http://crantastic.org/packages/KFAS

 Fast multivariate Kalman filter, smoother, simulation smoother and
 forecasting. Uses exact diffuse initialisation when distributions of
 some or all elements of initial state vector are unknown.

 * munsell (0.1)
 Charlotte Wickham
 http://crantastic.org/packages/munsell

 Functions for exploring and using the Munsell colour system

 * oosp (0.1.0)
 Charlotte Maia
 http://crantastic.org/packages/oosp

 An R package designed to support object oriented statistical
 programming, especially by extending S3 capabilities, providing
 pointer and component objects, and providing basic support for
 symbolic-numeric statistical programming.

 * PLIS (1.0)
 Zhi Wei
 http://crantastic.org/packages/PLIS

 PLIS is a multiple testing procedure for testing several groups of
 hypotheses. Linear dependency is expected from the hypotheses within
 the same group and is modeled by hidden Markov Models. It is noted
 that, for PLIS, a smaller p value does not necessarily imply more
 significance because of dependency among the hypotheses. A typical
 applicaiton of PLIS is to analyze genome wide association studies
 datasets, where SNPs from the same chromosome are treated as a group
 and exhibit strong linear genomic dependency.

 * rrv (0.0.1)
 Charlotte Maia
 http://crantastic.org/packages/rrv

 An incomplete R package for working with random return variables. The
 current package provides limited support for formatting money. More
 features will be added in the future.

 * ttrTests (1.0)
 David St John
 http://crantastic.org/packages/ttrTests

 Four core functions evaluate the efficacy of a technical trading rule.
 - Conditional return statistics - Bootstrap resampling statistics -
 Reality Check for data snooping bias among parameter choices -
 Robustness, or Persistence, of parameter choices


 Updated packages
 

 AdMit (1-01.03), alr3 (1.1.9), alr3 (1.1.10), cmprskContin (1.1),
 dataframes2xls (0.4.3), digeR (1.2), doBy (4.0.1), DoE.base (0.7),
 FrF2 (0.97-1), FrF2 (0.97-3), hdrcde (2.10), HH (2.1-30), JM (0.4-0),
 memisc (0.95-21), minet (2.0.0), MLDS (0.2-0), monomvn (1.7-3), mrt
 (0.3), nsRFA (0.6-9), PBSmodelling (2.21), plink (1.2-0), plotrix
 (2.7), RaschSampler (0.8-2), RCurl (1.0-0), rgdal (0.6-14), RSiena
 (1.0.5), rtv (0.3.0), sdef (1.1), SIS (0.2), spdep (0.4-36)

 New reviews
 ---

 * sqldf, by m.e.driscoll
 http://crantastic.org/reviews/26

 * SensoMineR, by padmanabhan.vijayan
 http://crantastic.org/reviews/25

 * plyr, by eamani
 http://crantastic.org/reviews/24



 This email provided as a service for the R community by
 http://crantastic.org.

 Like it? Hate it? Please let us know: crana...@gmail.com.

 On Mon, Aug 24, 2009 at 4:18 PM, Hadley Wickham crana...@gmail.com wrote:

 CRAN (and crantastic) updates this week

 New packages
 


 Updated packages
 



 New reviews
 ---



 This email provided as a service for the R community by
 http://crantastic.org.

 Like it?  Hate it?  Please let us know: crana...@gmail.com.


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 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Removing objects from workspace

2009-08-24 Thread Ronggui Huang
It depends.

If there are patterns in the names, you can make use of pattern
argument of ls(). For example,
 x1=a;x2=b;x3=c
 ls(pattern=x[1-2])
[1] x1 x2
 ls(pattern=x[^1-2])
[1] x3
# to remove x1-x3
rm(list=ls(pattern=x[1-2]))

More generally, if you want to remove all butx,xx,xxx,
you can use
rm(list=ls()[! ls() %in% c(x,xx,xxx)])


Hope this helps.


2009/8/25 Steven Kang stochastick...@gmail.com:
 Hi all,

 I am currently woking with hundreds of objects in workspace and whenever I
 invoke ls() to observe the names of the objects, there are too much of
 unnecessary variables.

 For example, if I only require say 3 or 4 objects from hundreds of objects
 in workspace, are there any methods that may do the job?

 I have tried rm(-c(x,xx,xxx)), but no luck..

 Your feedback in this problem would be highly appreciated.





 Steve

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] multiple linear regression

2009-08-21 Thread Ronggui Huang
pls use lm(y ~ x1+x2)

2009/8/21 Inchallah Yarab inchallahya...@yahoo.fr:
 Good morning,

 I want to make a linear regression of a variable fuction of  two variables y 
 = a1 x1 + a2 x2 + c

 I found the function lm (y ~ x)  but it used  for a simple linear regression, 
 but for  multiple regression i do not know which function do this!!

  Can you help me please!!

 Thank you in advance



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 and provide commented, minimal, self-contained, reproducible code.





-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Estimate Discrete Choice Models with R

2009-08-15 Thread Ronggui Huang
glm can do probit regression, and glmer (lme4 package) and do mixed
effect logit model.

Ronggui

2009/8/16 Hongwei Dong pdxd...@gmail.com:
 Thanks for the replies.
 What I'm really interest in are the functions that can do GEV, probit, and
 mixed logit. I searched R, and I did find the function that can do the
 regular multinomial logit model, but I did not see the function that can
 do GEV, probit, and mixed logit. Any further advices? Thanks.

 Harry


 On Fri, Aug 14, 2009 at 3:49 PM, Hongwei Dong pdxd...@gmail.com wrote:

 Hi, R users,
   Does anyone know whether there are any Discrete Choice Modeling modules
 for R? Any books or websites discussing this?

 Thanks

 Harry




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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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and provide commented, minimal, self-contained, reproducible code.


Re: [R] why summary() does not work here???

2009-08-15 Thread Ronggui Huang
I cannot reproduce what you mentioned. One possible is that you use
summary() without loading VGAM package.


2009/8/16 Hongwei Dong pdxd...@gmail.com:
 Hi, R users,
  I'm using the function vglm to estimate a multinomial logit model. Every
 time I use summary() to ask for the coefficients and std error, I got
 this:

 Length  Class   Mode
     1   vglm     S4

 Anyone know what's wrong here? Thanks.

 Harry

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] prop.test() - need algorithm or reference

2009-08-13 Thread Ronggui Huang
The help page of prop.test gives you three references. Isn't it enough?
For example,

 Newcombe R.G. (1998) Two-Sided Confidence Intervals for the Single
 Proportion: Comparison of Seven Methods. _Statistics in Medicine_
 *17*, 857-872.

 Newcombe R.G. (1998) Interval Estimation for the Difference
 Between Independent Proportions: Comparison of Eleven Methods.
 _Statistics in Medicine_ *17*, 873-890.


2009/8/13  ghe...@mathnmaps.com:

 Preparing a paper for a medical journal.

 Using the prop.test() function in R (v2.4.0)

 to compare two groups' response to data like the following.

 A sample of 100 individuals from Population I, 18 with positive readings

 from a certain test,

  vs.

 A sample of 148 individuals from Population II, 61 with positive readings.



 Results look like this:



 R version 2.4.0 Patched (2006-11-25 r39997)

 ..

 prop.test(c(18,61),c(100,148))



        2-sample test for equality of proportions with continuity

 correction



        data:  c(18, 61) out of c(100, 148)

        X-squared = 13.7676, df = 1, p-value = 0.0002069

        alternative hypothesis: two.sided

        95 percent confidence interval:

         -0.3498963 -0.1144280

         sample estimates:

            prop 1    prop 2

            0.180 0.4121622





 Presumably the p-value measures that the likelihood

 that the two populations have the same proportion of

 response.  My question is this.  The reviewer of the

 paper has asked for a reference on the algorithm used

 to compute the p-value. The R Reference Manual is not

 clear on this.  Is this a standard algorithm that can

 be quoted by name (e.g., Two-sample T Test)?  I

 do note that the manual quotes a 1927 article by E.B.

 Wilson.  Is the method of computation explained there?



 Thank you for any assistance you can provide.



 George Heine

 ghe...@mathnmaps.com

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Games in R

2009-08-12 Thread Ronggui Huang
Hi, another package can be found here http://r-forge.r-project.org/projects/fun/

2009/8/13 Bjørn Arild Mæland bjorn.mael...@gmail.com:
 Hi,

 There's a couple of games listed on crantastic: 
 http://crantastic.org/tags/games

 -Bjorn

 2009/8/12 David Croll david.cr...@gmx.ch:
 Hi everybody - this is an oddball question.


 I wonder if anybody has programmed any games in R, such as Sudoku,
 Tic-Tac-Toe and the like. Or even a flight simulator...


 R mateys! Let's make some t-tests!


 Regards, David

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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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Re: [R] How to Import Excel file into R 2.9.0 version

2009-08-11 Thread Ronggui Huang
You can download it from http://treetron.googlepages.com/xlsreadwrite.htm

Also, you may have a look at Data import/export manual, which has a
relevant section.

Ronggui

2009/8/11 rajclinasia r...@clinasia.com:

 Hi Every one,
 I have a problem with Reading Excel file into R 2.9.0 version. In older
 versions it is working with xlsReadWrite package. But in 2.9.0 version
 there is no package like that. so help me out in this aspect.

 Thanks in Advance.
 --
 View this message in context: 
 http://www.nabble.com/How-to-Import-Excel-file-into-R-2.9.0-version-tp24914638p24914638.html
 Sent from the R help mailing list archive at Nabble.com.

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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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Re: [R] RES: Saving plots to file

2009-08-10 Thread Ronggui Huang
Or you can plot first, when you are satisfied with it, copy the plot
to another device.
for example,

X11()
plot(rnorm(10))
dev.copy(png) ## copy the plot to an png file.

Best

2009/8/11 Rodrigo Aluizio r.alui...@gmail.com:
 You can save plots as specified below. For details see ?png, ?postscrip,
 ?tiff, ?jpeg, ?bmp.

 postscript(file = ifelse(onefile, Rplots.ps, Rplot%03d.ps),
           onefile, family, title, fonts, encoding, bg, fg,
           width, height, horizontal, pointsize,
           paper, pagecentre, print.it, command,
           colormodel, useKerning)
 bmp(filename = Rplot%03d.bmp, width = 480, height = 480,
    units = px, pointsize = 12, bg = white, res = NA,
    restoreConsole = TRUE)
 jpeg(filename = Rplot%03d.jpg, width = 480, height = 480,
     units = px, pointsize = 12, quality = 75, bg = white,
     res = NA, restoreConsole = TRUE)
 png(filename = Rplot%03d.png, width = 480, height = 480,
    units = px, pointsize = 12, bg = white, res = NA,
    restoreConsole = TRUE)
 tiff(filename = Rplot%03d.tif, width = 480, height = 480,
     units = px, pointsize = 12,
     compression = c(none, rle, lzw, jpeg, zip),
     bg = white, res = NA,
     restoreConsole = TRUE)


 -Mensagem original-
 De: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] Em
 nome de Sean MacEachern
 Enviada em: segunda-feira, 10 de agosto de 2009 13:26
 Para: r-help@r-project.org
 Assunto: [R] Saving plots to file

 Appologies if this has been addressed before, but I can't seem to find it in
 the help archives.

 I'm looking to do something like the following but it looks like save.plot
 is deprecated.

 save.plot(plot(glm1$residuals,gain,main = Hist of residuals and
 gain),file=Desktop/hist1.png)


 Thanks in advance,

 Sean

 Session Info:

 R version 2.9.1 (2009-06-26)
 i386-apple-darwin8.11.1

 locale:
 en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

 attached base packages:
 [1] stats     graphics  grDevices utils     datasets  methods   base

 loaded via a namespace (and not attached):
 [1] tools_2.9.1

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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Example scripts for R Manual

2009-08-10 Thread Ronggui Huang
Is it really necessary? You can just copy the commands in the manual
and paste them to R.

Ronggui

2009/8/11 Peng Yu pengyu...@gmail.com:
 Hi,

 I am wondering if some experienced users would help put the
 ready-to-run code of the examples in the manuals. It would help new
 users  learn R faster by putting all the examples in an ready-to-run R
 script file. Can somebody help do so sometime and post the code along
 with the pdf manuals?

 http://cran.r-project.org/manuals.html

 Regards,
 Peng

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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Re: [R] import data into R

2009-08-05 Thread Ronggui Huang
You can not import xls file by read.table. You may save xls as csv
file, and import it by read.csv.


2009/8/6 Inchallah Yarab inchallahya...@yahoo.fr:
 Thank you Gabor Grothendieck for your answer !!
 i have charge the pachage but now i have this massage

  read.table(c:/TOTAL.xls,h=T)
 [1] ÐÏ.à..
 0 rows (or 0-length row.names)
 Warning messages:
 1: In read.table(c:/TOTAL.xls, h = T) :
   incomplete final line found by readTableHeader on 'c:/TOTAL.xls'
 2: In if (!header) rlabp - FALSE :
   the condition has length  1 and only the first element will be used
 3: In if (header) { :
   the condition has length  1 and only the first element will be used


 thank you



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-- 
HUANG Ronggui, Wincent
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Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Comparison of Output from dwtest and durbin.watson

2009-08-04 Thread Ronggui Huang
I think the statistics are the same, but the p-values are not exactly
the same as they used different methods for the p-value. car uses
bootstrapping and lmtest uses the pan algorithm, said from the help
pages.


2009/8/4 Tom La Bone boo...@gforcecable.com:

 Allow me to reword this question. I have performed two fits to the same set
 of data below: a weighted fit and an unweighted fit. I performed the
 Durbin-Watson tests on each fit using dwtest and durbin.watson. For a
 given fit (weighted or unweighted), should both dwtest and durbin.watson be
 giving me the same DW statistic and p-value? Should I get the same DW
 statistic and p-value for the weighted and unweighted fits as I do using
 dwtest?


 library(lmtest)
 Loading required package: zoo

 Attaching package: 'zoo'


        The following object(s) are masked from package:base :

         as.Date.numeric

 library(car)
 X - c(4.8509E-1,8.2667E-2,6.4010E-2,5.1188E-2,3.4492E-2,2.1660E-2,
 +         3.2242E-3,1.8285E-3)
 Y - c(2720,1150,1010,790,482,358,78,35)
 W - 1/Y^2

 fit - lm(Y ~ X - 1)
 dwtest(fit,alternative=two.sided)

        Durbin-Watson test

 data:  fit
 DW = 0.7599, p-value = 0.05935
 alternative hypothesis: true autocorelation is not 0

 durbin.watson(fit,alternative=two.sided)
  lag Autocorrelation D-W Statistic p-value
   1       0.5897666     0.7599161   0.368
  Alternative hypothesis: rho != 0

 fit - lm(Y ~ X - 1,weights=W)
 dwtest(fit,alternative=two.sided)

        Durbin-Watson test

 data:  fit
 DW = 0.7599, p-value = 0.05935
 alternative hypothesis: true autocorelation is not 0

 durbin.watson(fit,alternative=two.sided)
  lag Autocorrelation D-W Statistic p-value
   1     -0.07663672      1.209076    0.77
  Alternative hypothesis: rho != 0


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-- 
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PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] status of boolean package

2009-08-03 Thread Ronggui Huang
FYI


-- Forwarded message --
From: Bear Braumoeller braumoelle...@polisci.osu.edu
Date: 2009/8/4
Subject: Re: Package boolean on CRAN
To: c...@datanalytics.com c...@datanalytics.com
Cc: Ronggui Huang ronggui.hu...@gmail.com, Ben Goodrich
goodr...@fas.harvard.edu


Gentlemen,

Thanks for your enquiries.  Boolean is under active development, and
we should have a new release on CRAN soon; we'll be happy to notify
you when it's up.  It may be delayed as I am out of the office until
mid-August.

Thanks for your interest.  I'd appreciate it if you'd post this
information to the r-help list (or send it to anyone else who needs it
directly) as my Internet connection is excruciatingly slow.

Best regards,
Bear Braumoeller

Entered on a mobile device; please pardon brevity and typos.

On Aug 2, 2009, at 8:38 PM, Carlos J. Gil Bellosta
c...@datanalytics.com wrote:

 Dear Prof. Braumoeller,

 I am writing to you as I have realized that the R package boolean that
 you maintained on CRAN has become orphaned and unavailable.

 This happens when, after a new version of R arrives, there are some
 checks that the package does not pass and the author can no longer be
 contacted.

 I do not know whether you are still interested in this piece of code. It
 is a pity, though, that it becomes unavailable while there are some
 people asking for it in the R-help lists.

 If you are still interested in it, I would appreciate if you would take
 the steps to make it available again. If you have no time or you are not
 interested in it any more, I would gladly volunteer to maintain it and
 make the appropriate fixes so that it becomes available to the community
 again.

 Best regards,

 Carlos J. Gil Bellosta
 http://www.datanalytics.com




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Compare lm() to glm(family=poisson)

2009-08-02 Thread Ronggui Huang
In practices, it is not easy to make such decision. One example is
size of social ties in social network study. It is very common to use
OLS thought it is count variable rather than normal. I think AIC is
suggestive as well.

Ronggui

2009/8/2 Alain Zuur highs...@highstat.com:



 Mark Na wrote:

 Dear R-helpers,
 I would like to compare the fit of two models, one of which I fit using
 lm()
 and the other using glm(family=poisson). The latter doesn't provide
 r-squared, so I wonder how to go about comparing these
 models (they have the same formula).

 Thanks very much,

 Mark Na

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 The decision which distribution to use (Normal versus Poisson) should be an
 a priori choice. If you really want to compare them, then inspect the
 residuals of both models and see which model doesn't have any residual
 patterns.

 Alain

 -
 
 Dr. Alain F. Zuur
 First author of:

 1. Analysing Ecological Data (2007).
 Zuur, AF, Ieno, EN and Smith, GM. Springer. 680 p.

 2. Mixed effects models and extensions in ecology with R. (2009).
 Zuur, AF, Ieno, EN, Walker, N, Saveliev, AA, and Smith, GM. Springer.

 3. A Beginner's Guide to R (2009).
 Zuur, AF, Ieno, EN, Meesters, EHWG. Springer


 Statistical consultancy, courses, data analysis and software
 Highland Statistics Ltd.
 6 Laverock road
 UK - AB41 6FN Newburgh
 Email: highs...@highstat.com
 URL: www.highstat.com



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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] status of boolean?

2009-08-02 Thread Ronggui Huang
package of boolean has been removed from CRAN. Anyone know why?
Thanks.

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Likelihood Function for Multinomial Logistic Regression and its partial derivatives

2009-08-02 Thread Ronggui Huang
You may refer to mlogit for the ordinary multinomial regression. As
fas as I know, there are no functions for multilevel multinomial
regression.

Ronggui

2009/8/2 nikolay12 nikola...@gmail.com:

 Hi,

 I would like to apply the L-BFGS optimization algorithm to compute the MLE
 of a multilevel multinomial Logistic Regression.

 The likelihood formula for this model has as one of the summands the formula
 for computing the likelihood of an ordinary (single-level) multinomial logit
 regression. So I would basically need the R implementation for this formula.
 The L-BFGS algorithm also requires computing the partial derivatives of that
 formula in respect to all parameters. I would appreciate if you can point me
 to existing implementations that can do the above.

 Nick

 PS. The long story for the above:

 My data is as follows:

 - a vector of observed values (lenght = D) of the dependent multinomial
 variable each element belonging to one of N levels of that variable

 - a matrix of corresponding observed values (O x P) of the independent
 variables (P in total, most of them are binary but also a few are
 integer-valued)

 - a vector of current estimates (or starting values) for the Beta
 coefficients of the independent variables (length = P).

 This data is available for 4 different pools. The partially-pooled model
 that I want to compute has as a likelihood function a sum of several
 elements, one being the classical likelihood function of a multinomial logit
 regression for each of the 4 pools.

 This is the same model as in Finkel and Manning Hierarchical Bayesian
 Domain Adaptation (2009).

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Collinearity in Linear Multiple Regression

2009-08-02 Thread Ronggui Huang
I think perturb:colldiag implementes condition index as well as
variance decomposition proportions.

Ronggui

2009/7/21 Stephan Kolassa stephan.kola...@gmx.de:
 Hi Alex,

 I personally have had more success with the (more complicated) collinearity
 diagnostics proposed by Belsley, Kuh  Welsch in their book Regression
 Diagnostics than with Variance Inflation Factors. See also:

 Belsley, D. A. A Guide to using the collinearity diagnostics. Computational
 Economics, 1991, 4, 33-50

 However, I know of no R package that implements these diagnostics. Anyway,
 it's not hard to do so oneself.

 Good luck!
 Stephan


 Alex Roy schrieb:

 Dear all,
                  How can I test for collinearity in the predictor data set
 for multiple linear regression.

 Thanks

 Alex

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] R book for economists

2009-08-01 Thread Ronggui Huang
How about Kleiber, C.  Zeileis, A. Applied Econometrics with R Springer, 2008?

Ronggui

2009/8/1 Thiemo Fetzer t...@devmag.net:
 Dear Group,

 I am an economics student starting with PhD work in London. As preparation I
 would like to get to know R a little bit better. For Stata there are tons of
 books, however, can you recommend a book for R?

 I have some substantiated econometrics knowledge, so it should be more a
 how-to book.

 Best regards
 Thiemo

 ---
 Thiemo Fetzer, Economist
 http://freigeist.devmag.net
 http://www.devmag.net

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Installing lme4 package in Windows Vista

2009-07-28 Thread Ronggui Huang
After installation of lme4, you need to load it before use it.
library(lme4)
?lmer

2009/7/29 Angela Radulescu angela.radule...@gmail.com:

 Hi all,

 I have a problem with package installing in Windows, on my PC machine. The
 end goal is to be able to use the lme() function. Here's what I did so far:

 install.packages(lme4)
 Warning in install.packages(lme4) :
  argument 'lib' is missing: using
 'C:\Users\Angela\Documents/R/win-library/2.9'
 --- Please select a CRAN mirror for use in this session ---
 trying URL
 'http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.9/lme4_0.999375-31.zip'
 Content type 'application/zip' length 1140865 bytes (1.1 Mb)
 opened URL
 downloaded 1.1 Mb

 package 'lme4' successfully unpacked and MD5 sums checked

 The downloaded packages are in
        C:\Users\Angela\AppData\Local\Temp\Rtmp1t8vjT\downloaded_packages
 updating HTML package descriptions
 Warning message:
 In file.create(f.tg) :
  cannot create file 'C:\PROGRA~1\R\R-29~1.1/doc/html/packages.html', reason
 'Permission denied'

 I had to change permissions on some of the library folder before this.
 Still, after installation, R cannot find the lme function of interest.

 lme
 Error: object 'lme' not found

 Does anyone know why this is happening, and what the solution to the problem
 is?

 Many thanks,
 Angela
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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Re: [R] Error in object$coefficients : $ operator not defined for this S4 class

2009-07-07 Thread Ronggui Huang
What is fit in your example?

Ronggui

2009/7/7 aledanda danda.ga...@gmail.com:

 Hallo,

 I received this error message while calculating the coefficents

 coef(fit, matrix=TRUE)

 Error in object$coefficients : $ operator not defined for this S4 class

 what is this? How can I solve it?

 Ale
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Error in object$coefficients : $ operator not defined for this S4 class

2009-07-07 Thread Ronggui Huang
I can not reproduce your problem with the latest version of VGAM.

Besides, if you want to get the coef and std. error etc.
you can use
 summary(fit)@coef3
  Value Std. Error   t value
(Intercept):1 -1.020388 0.03215889 -31.72957
(Intercept):2  1.335657 0.04206706  31.75067


2009/7/7 Alessandra Galli danda.ga...@gmail.com:
 Sure, sorry,

 I am fitting with beta distribution:

 y= rbeta(n - 1000, shape1=exp(0), shape2=exp(1))
 fit = vglm (y ~ 1, betaff, trace =TRUE)

 Thanks

 2009/7/7 Ronggui Huang ronggui.hu...@gmail.com

 What is fit in your example?

 Ronggui

 2009/7/7 aledanda danda.ga...@gmail.com:
 
  Hallo,
 
  I received this error message while calculating the coefficents
 
  coef(fit, matrix=TRUE)
 
  Error in object$coefficients : $ operator not defined for this S4 class
 
  what is this? How can I solve it?
 
  Ale
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  __
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  PLEASE do read the posting guide
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 --
 HUANG Ronggui, Wincent
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html



 --
 Alessandra Galli
 Mechelsestraat 155 /6
 3000 Leuven
 Belgium
 T: +32 473 588179





-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Correlation Network Diagram?

2009-07-03 Thread Ronggui Huang
Maybe not address your question directly. There is a package for
correlation visualization in r-forge
(http://r-forge.r-project.org/projects/corrplot/).

2009/7/3  rory.wins...@gmail.com:
 Hi all

 On page 39 of this paper [1] by Andrew Lo there is a very interesting
 correlation network diagram (sorry I dont have a more convenient link to
 the type of diagram I'm talking about). does anyone know of any package in
 R that can generate these types of diagrams?

 Cheers
 -- Rory

 [1] http://web.mit.edu/alo/www/Papers/august07.pdf

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] save the result into a word file

2009-07-03 Thread Ronggui Huang
How about export it to a HTML and then copy to MS word.
I have packaged some code to export lm object to HTML in AJS style.
You can have a look at ASAtable
(http://r-forge.r-project.org/R/?group_id=328).

Ronggui

2009/7/3 Suyan Tian st...@mail.rockefeller.edu:
 Hi, everyone:

 I forget on how to save a result from R as a word document. For example, if
 I run the linear regression and want to save the result:

 summary(lm(y~x)

 in a word file. So I can show it later to my clients.  Any idea on how to do
 this?

 Thanks a lot,


 Suyan

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] order by decerasing 1st variable and increasing 2nd variable

2009-06-24 Thread Ronggui Huang
How about this:
 x[order(x$One,-x$Two,decreasing=T),]
  One Two
8   5   3
7   4   3
6   3   3
4   2   2
5   2   3
3   1   1
1   1   2
2   1   3


2009/6/24 Daniel Brewer daniel.bre...@icr.ac.uk:
 Hello,

 I have a data.frame which I would like to sort with the primary key
 decreasing while the secondry key is increasing e.g.

 x - data.frame(One=c(1,1,1,2,2,3,4,5),Two=c(2,3,1,2,3,3,3,3))

 I would like to order it so it looks like this:

  One Two
 8   5   3
 7   4   3
 6   3   3
 4   2   2
 5   2   3
 3   1   1
 1   1   2
 2   1   3

 i.e. primarily decreasing in the 1st column but if there is a tie
 increasing in the second column.

 Is this possible?  I can not find anything in order that seems to
 support this.  I would have thought,

 x[order(x$One,x$Two,decreasing=c(T,F)),]

 would do it but it doesn't.

 Thanks

 Dan

 --
 **
 Daniel Brewer, Ph.D.

 Institute of Cancer Research
 Molecular Carcinogenesis
 Email: daniel.bre...@icr.ac.uk
 **

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company 
 Limited by Guarantee, Registered in England under Company No. 534147 with its 
 Registered Office at 123 Old Brompton Road, London SW7 3RP.

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-- 
HUANG Ronggui, Wincent
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Dept of Public and Social Administration
City University of Hong Kong
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Re: [R] Urgent - odfWeave produces graphs /images with Read-Error

2009-06-17 Thread Ronggui Huang
If you use lattice to produce the figures, you need to wrap them in print, say,
=
print(xyplot(y~x,data=dat))
@

Ronggui

2009/6/17 Fredrik Karlsson dargo...@gmail.com:
 Dear list,

 I have been working on a report with around 60 images in it, and
 everything has been fine, until now. I find that the image output that
 is produced by odfWeave produces images that are NOT readable by
 OpenOffice or NeoOffice. I get empty boxes with Read-Error written in
 them. While generating the file using odfWeave, I can see them being
 generated on the screen, and they all seem fine.

 Have anybody seen this before? Is there a way around it?

 /Fredrik

 --
 Life is like a trumpet - if you don't put anything into it, you don't
 get anything out of it.

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] The most straightfoward way to write a function that sums over the rows of a matrix

2009-06-16 Thread Ronggui Huang
Why not just use rowSums?

Ronggui

2009/6/16 Stu @ AGS s...@agstechnet.com:
 Hello!



 I am trying to write a function with vector and data.frame parameters that
 uses the sum() function and values from the rows of the data.frame.

 I need to pass this function as a parameter to optim().



 My starting point is:

 observs - data.frame(y, x1, x2, x3)



 Fn - function(par, observs) {

                sum( (y - (par[1] * (x1 + 1) * x2^(-par[2]) * x3^par[3])^2 )

 }



 y, x1, x2, x3 are all vectors.



 I am a bit new to R and I have not been able to find a good description of
 how to iterate over rows in a data.frame.



 What is a straightforward way to do this?

 What am I missing?



 Thanks

 Stu




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HUANG Ronggui, Wincent
PhD Candidate
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City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] How to capture output from a subprocess?

2009-06-13 Thread Ronggui Huang
## open a pipe
a - pipe(mplayer -slave -quiet /media/wind/Music/a.mp3,w)
write(get_file_name,a) ## send get_file_name command to player.
## ANS_FILENAME='a.mp3'
write(quit,a) ## exit mplayer

Can I capture the output from mplayer into a R object? In this case,
it is ANS_FILENAME='a.mp3'. I try sink(), but it doesn't work as
what I want to capture is not a return from R.

Thanks.

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Install local package

2009-06-11 Thread Ronggui Huang
## Check the package
 R CMD check path.of.package
## Build the package
 R CMD build pathof.package
## INSTALL the package
 R CMD INSTALL path.of.package

You can use _R --help _  (from within terminal) to get more information.

Ronggui

2009/6/11 Jorge Cornejo cornejo...@gmail.com:
 Hi, I'm working on a package that I would someday put in CRAN. Now I
 want to test it on my computer. I already check and compile the files
 but I don't know how to install the package located on my hard drive.
 I'm running R under linux. Can anyone tell my how to do it?

 Thanks in advance.

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] graphically representing frequency of words in a speech?

2009-06-10 Thread Ronggui Huang
There is a similar discussion in statalist
(http://n2.nabble.com/st%3A-Tag-clouds-in-Stata--tt2992551.html#none),
I think they make a reasonable argument that tag cloud is not a good
statistical graphic.


2009/6/10 Yihui Xie xieyi...@gmail.com:
 Hi,

 As Gregor Gorjanc mentioned, it's very inconvenient to let R decide
 the fontsize and placement of words in a plot. There have already been
 very mature applications of tag cloud; one of them I'm relatively
 familiar is the WordPress plugin wp-cumulus, which makes use of a
 Flash object to generate tag cloud, and it has fantastic 3D rotation
 effect of the cloud. I've spent a couple of hours porting it into R;
 see the source code and effect here:

 http://yihui.name/en/2009/06/creating-tag-cloud-using-r-and-flash-javascript-swfobject/

 HTH.

 Regards,
 Yihui
 --
 Yihui Xie xieyi...@gmail.com
 Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
 Mobile: +86-15810805877
 Homepage: http://www.yihui.name
 School of Statistics, Room 1037, Mingde Main Building,
 Renmin University of China, Beijing, 100872, China



 On Mon, Jun 8, 2009 at 2:41 AM, Brown, Tony
 Nicholastony.n.br...@vanderbilt.edu wrote:
 Dear all,



 I recently saw a graph on television that displayed selected
 words/phrases in a speech scaled in size according to their frequency.
 So words/phrases that were often used appeared large and words that were
 rarely used appeared small. The closest thing I can find on the web to
 approximate what I saw can be found here:
 http://stateoftheunion.onetwothree.net/ The example at that website is
 more complicated but captures the general idea.



 Would someone point me in the right direction in terms of replicating
 such a graph.



 Thanks in advance,

 Tony



 
 -

 Tony N. Brown, Ph.D.

 Editor-Elect, American Sociological Review

 Associate Professor of Sociology and Human and Organizational
 Development (secondary)

 Program Faculty, Effective Health Communication and African American 
 Diaspora Studies

 Faculty Head of Hank Ingram House, The Commons

 Vanderbilt University

 (615) 322-7518

 (615) 322-7505 fax




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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Vista + R = *!!?@

2009-06-10 Thread Ronggui Huang
lmer will not produce p-value but glmer does. So, if you want to
estimate a lmm model, you can use lme in nlme package instead.

Ronggui

2009/6/11 John Townsend-Mehler towns...@msu.edu:
 Hello People of R,

 Is there any way that I can get R to function properly using Vista.  I get
 very strange output using lmer, as in no p-values.  Is there ANY way I can
 fix this.

 Thank you for your time,

 John Townsend-Mehler
 PhD Candidate
 Department of Zoology
 Michigan State University

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Writing Reports from R in Office Open XML format (ooxmlWeave?)

2009-06-09 Thread Ronggui Huang
Wow, It sounds great. Looking forward to it.


2009/6/9 Duncan Temple Lang dun...@wald.ucdavis.edu:
 Yes. We will release a version in the next few weeks
 when I have time to wrap it all up.
 There is also a Docbook-based version that uses
 R extensions to Docbook for authoring structured
 documents.

  D.

 Tobias Sing wrote:

 Dear all,

 has someone implemented functionality for writing reports from R in
 Office Open XML format (*), similar to what odfWeave does for the ODF
 format of OpenOffice? It would be great to have a kind of
 ooxmlWeave at least for those of us who are forced to work in an
 MS ecosystem.

 (*) Office Open XML is the default, XML-based, file format for MS
 Word: http://en.wikipedia.org/wiki/Office_Open_XML

 Kind regards,
  Tobias

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] searchpaths

2009-06-09 Thread Ronggui Huang
No. This function is used to get a list of 'attach'ed _packages_ 
rather than search files in your computer.

2009/6/10  mau...@alice.it:
 May I use searchpaths() with arguments partially matching file names that 
 are found in different directories ?
 My question is whether this is th R function equivalent of Linux find or 
 Windows search.
 Both O.S. calls are given a starting point so that they search all diectories 
 from then downwards looking for files whose
 names match the searching criteria.
 Thank you.
 Maura



 tutti i telefonini TIM!


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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] SECOND MESSAGE: Re: Question about R an SPSS

2009-06-08 Thread Ronggui Huang
There is a technical report on comparison of R and other statistical
software 
(http://www.ats.ucla.edu/stat/technicalreports/Number1/R_relative_statpack.pdf).
You can have an overall view from this document.

You may have better chance to get answers if you specify what you want
to do and if R can do it. Of course, R can read data of SPSS format by
read.spss function in foreign package.

Ronggui

2009/6/9 DIEGO CHAVEZ diego.cha...@andinanet.net:
 Sent: Sunday, June 07, 2009 5:43 PM
  Subject: Question about R an SPSS


  Dears Sirs:
  Venables, Smith and  R-Development Core Team


  I am reading about the functional features of R statistical software, 
 because I want to compare these progarm with the basic module of SPSS 
 software.
  I would like to know  if the  R  version 2.9.0 application   is capable of  
 read and procces entry  files that were created in  SPSS program version 17 
 or earliers.

  In adittion,   If you have more information about the  functional 
 comparisons between R and SPSS software, please send to my email address
  I will be grateful for you response.

  Best regards.

  Diego Chávez




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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] RGtk2 help: Show list of column names from dataset and categorize as factor or numeric

2009-06-04 Thread Ronggui Huang
I use gWidgetsRGtk2, which provides widgets such as notebook etc. You
can start with gWidgetsRGtk2, and if you want to tailor the GUI
according to your needs, you can modified them with RGtk2 package.

Ronggui

2009/6/4 Harsh singhal...@gmail.com:
 Hi UseRs,
 I recently started working with the RGtk2 library. The documentation
 is comprehensive and I've tried learning from the examples in most Gtk
 tutorials (which have C code). This is a little problematic, but has
 helped quite a bit in getting me started.

 I would like to create a GUI for file selection, which then displays
 the column names from the selected file, and provides the user with
 checkboxes with each column name for the user to select. Two columns
 of check boxes (Factor Type, Numeric Type) and one column of names is
 what I would like to display.

 Moreover, I am planning to create a GUI tool that would have tabs in a
 notebook layout, each tab providing a certain functionality, beginning
 from basic charting of data, and going on to applying regression
 models and such on the data.

 This requires extensive knowledge in components that RGtk2 provides
 which could be implemented for the task outlined above. I have looked
 at the omegahat.org examples, but would like to see examples for such
 simple tasks as to how one could create a drop down list of column
 names to choose for x axis and another drop down allowing the choice
 of y axis, etc.

 Having made the choice to use RGtk2, I would  appreciate if users
 could share their RGtk experience with me.

 Regards
 Harsh Singhal

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] (no subject)

2009-05-31 Thread Ronggui Huang
use _search()_ to see if the package is on the search path. If yes,
use _detach(package:sn,unload=TRUE)_ to detach it and then try to
install it again.

Ronggui

2009/6/1 Roslina Zakaria zrosl...@yahoo.com:
 Hi R-users,

 I try to use sn package but it give me the following message:

 install.packages(repos=NULL,pkgs=c:\\Tinn-R\\sn_0.4-12.zip)
 Warning: package 'sn' is in use and will not be installed
 updating HTML package descriptions

 I did tried a few time to save the .zip file but it give me the same error 
 message.

 Thank you so much for any help given.



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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] problem with ls command

2009-05-29 Thread Ronggui Huang
I am not sure what you want. The error msg is clear to me. You can use
search() to search what are in the search path, for example.
 search()
[1] .GlobalEnvpackage:stats package:graphics
[4] package:grDevices package:utils package:datasets
[7] package:methods   Autoloads package:base
 ls(package:graphics)
 [1] abline  arrows  assocplot   axis


Ronggui

2009/5/29 anupam sinha anupam.cont...@gmail.com:
 Hi all ,
           I am facing some problems with 'ls' command. Whenever I use it I
 get the following error :

 ls(KEGG.db)
 Error in as.environment(pos) :
  no item called KEGG.db on the search list

 ls(pkgname)
 Error in as.environment(pos) :
  no item called KEGG.db on the search list


 and this is true for any package. Can anything be done ?




 Regards,

 Anupam Sinha,
 Graduate Student,
 Laboratory of Computational Biology,
 Centre for DNA fingerprinting and Diagnostics
 Hyderabad,
 India - 51

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] GTK Tooltips under Linux

2009-05-29 Thread Ronggui Huang
Noted with thanks.

Regards

Ronggui

2009/5/29 Michael Lawrence mflaw...@fhcrc.org:


 On Thu, May 28, 2009 at 7:35 PM, Ronggui Huang ronggui.hu...@gmail.com
 wrote:

 Dear all,

 I want to set tool-tips for a gtkButton. I use the following code
 which works under Windows. However, it doesn't work under Linux. Any
 hints? Thanks.

 Unfortunately, on platforms besides Windows, the event loop runs via an
 input handler connected to X11. If you're waiting for a tooltip to show up,
 there's obviously no input, so the event loop is not iterated.

 I think I could fix this by creating a separate thread that writes to a file
 descriptor connected to an input handler. I'll try to do that.

 Michael


 library(RGtk2)
 b-gtkButtonNewWithLabel(OK)
 gtkTooltips()$setTip(b,Memo for a Button.)
 gw - gtkWindow(show=F)
 gw$Add(b)
 gw$Show()

  sessionInfo()
 R version 2.8.0 Patched (2008-12-10 r47137)
 i686-pc-linux-gnu

 locale:

 LC_CTYPE=zh_CN.UTF-8;LC_NUMERIC=C;LC_TIME=zh_CN.UTF-8;LC_COLLATE=zh_CN.UTF-8;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=zh_CN.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=zh_CN.UTF-8;LC_IDENTIFICATION=C

 attached base packages:
 [1] stats     graphics  grDevices utils     datasets  methods   base

 other attached packages:
 [1] RGtk2_2.12.11        RQDA_0.1-8           igraph_0.5.2-2
 [4] gWidgetsRGtk2_0.0-51 gWidgets_0.0-35      RSQLite_0.7-1
 [7] DBI_0.2-4

 loaded via a namespace (and not attached):
 [1] tools_2.8.0

 --
 HUANG Ronggui, Wincent
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] GTK Tooltips under Linux

2009-05-28 Thread Ronggui Huang
Dear all,

I want to set tool-tips for a gtkButton. I use the following code
which works under Windows. However, it doesn't work under Linux. Any
hints? Thanks.

library(RGtk2)
b-gtkButtonNewWithLabel(OK)
gtkTooltips()$setTip(b,Memo for a Button.)
gw - gtkWindow(show=F)
gw$Add(b)
gw$Show()

 sessionInfo()
R version 2.8.0 Patched (2008-12-10 r47137)
i686-pc-linux-gnu

locale:
LC_CTYPE=zh_CN.UTF-8;LC_NUMERIC=C;LC_TIME=zh_CN.UTF-8;LC_COLLATE=zh_CN.UTF-8;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=zh_CN.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=zh_CN.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] stats graphics  grDevices utils datasets  methods   base

other attached packages:
[1] RGtk2_2.12.11RQDA_0.1-8   igraph_0.5.2-2
[4] gWidgetsRGtk2_0.0-51 gWidgets_0.0-35  RSQLite_0.7-1
[7] DBI_0.2-4

loaded via a namespace (and not attached):
[1] tools_2.8.0

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] R under Ubuntu

2009-05-26 Thread Ronggui Huang
I think it is standard practice. If you want R to load a workspace
automatically when R is launched, you can add the command in
.Rprofile. See ?Startup for more on Initialization at Start of an R
Session.

Ronggui

2009/5/26 Luis Ridao Cruz lu...@hav.fo:
 R-help,

 I have installed R under Ubuntu and
 I'm very new to a Linux distribution.

 To open an empty R session I just type R on the Terminal aplication.
 But how can I open a saved workspace?
 At present I just start R and then load (my_workspace) but it must be 
 possible
 to do it all at onceright?

 Thanks in advance

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] split strings

2009-05-26 Thread Ronggui Huang
They look like file path, so you can make use of basename() first,
then use gsub to strip the suffix.

 x-c(F:/Naval_Live_Oaks/2005/data//BE.tif,F:/Naval_Live_Oaks/2005/data//CH.tif)
 x2-sapply(x,basename,USE.NAMES=FALSE)
 gsub([.].{1,}$,,x2)
[1] BE CH

Ronggui

2009/5/26 Monica Pisica pisican...@hotmail.com:

 Hi everybody,

 I have a vector of characters and i would like to extract certain parts. My 
 vector is named metr_list:

 [1] F:/Naval_Live_Oaks/2005/data//BE.tif
 [2] F:/Naval_Live_Oaks/2005/data//CH.tif
 [3] F:/Naval_Live_Oaks/2005/data//CRR.tif
 [4] F:/Naval_Live_Oaks/2005/data//HOME.tif

 And i would like to extract BE, CH, CRR, and HOME in a different vector named 
 names.id for example. I read the help files for sub and grep and the likes 
 but i have to recognize that i did not understand it. So i've done this 
 (which does the job but extremely clumsy):

 b - strsplit(metr_list, //)
 b - unlist(b)
 d - strsplit(b, \\.)
 d - unlist(d)
 names.id - d[c(2, 5, 8, 11)]

 Can anybody show what would be the proper way to achieve this with some 
 explanations?

 Thanks,

 Monica
 _
 Hotmail® goes with you.

 ial_Mobile1_052009
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Draw a rectangle on top of an image using RGtk2?

2009-05-25 Thread Ronggui Huang
I see. So if I want to draw a rectangle by a function outside the
expose_fn, I need to refer to the drawable within the expose_fn. One
possibility is to use an environment, so I can refer to it
dynamically. Thanks,

Ronggui

2009/5/25 Michael Lawrence mflaw...@fhcrc.org:


 On Sat, May 23, 2009 at 8:27 AM, Ronggui Huang ronggui.hu...@gmail.com
 wrote:

 Thanks, Michael. Just one more follow-up question. Is there other way
 to get the GdkDrawable (here da2) without using - or other
 assignment operation from within expose_fn? I thought
 da$GetRootWindow() would work, but it does not.

 You need to be drawing the rectangle within expose_fn, otherwise it won't
 show up. There should be no need to access the GdkWindow (da2) of the
 drawing area outside of expose_fn.

 Michael


 da - gtkDrawingArea()
 da2 - NULL

 expose_fn - function(widget,event,...){
 img - gdkPixbufNewFromFile(/media/wind/Pictures/kaehatu.jpg)$retval
 da2 -widget[[window]]
 gdkDrawPixbuf(da2, gc = NULL, pixbuf=img,
 event[[area]][[x]], event[[area]][[y]],
 event[[area]][[x]], event[[area]][[y]],
 event[[area]][[width]], event[[area]][[height]])
  return(FALSE)
 }
 gSignalConnect(da,expose-event,expose_fn)
 w-gtkWindow(show=F)
 w$SetSizeRequest(400,300)
 w$Add(da)
 w$Show()

 dgc - gdkGCNew(da2)
 gdkGCSetLineAttributes(dgc, line.width=2,
 line.style=solid,round,round)
 gdkDrawRectangle(da2,dgc,FALSE,10,10,100,100)


 Ronggui

 2009/5/23 Michael Lawrence mflaw...@fhcrc.org:
 
 
  On Fri, May 22, 2009 at 11:27 PM, Ronggui Huang
  ronggui.hu...@gmail.com
  wrote:
 
  Dear all,
 
  I use gtkImageFromFile to display an image. Then I want to do some
  gsignal to handle mouse event. I click the mouse and move a another
  position and release. I can get the position of the firs click and the
  release position,  then I would to draw a rectangle to display the
  region I have selected. I need some hints on what functions should I
  look for. I tried to google but don't know how.
 
  The GtkImage widget is just for showing images. If you want to start
  doing
  interactive graphics, I'd suggest moving to the more general
  GtkDrawingArea
  widget and connecting to the expose-event signal. You can then use
  GdkPixbuf
  for loading and drawing the image onto the drawing area. And then draw a
  rectangle on top with gdkDrawRectangle().
 
  See demos drawingArea and images.
 
  Michael
 
 
  Thanks.
 
  --
  HUANG Ronggui, Wincent
  PhD Candidate
  Dept of Public and Social Administration
  City University of Hong Kong
  Home page: http://asrr.r-forge.r-project.org/rghuang.html
 
  __
  R-help@r-project.org mailing list
  https://stat.ethz.ch/mailman/listinfo/r-help
  PLEASE do read the posting guide
  http://www.R-project.org/posting-guide.html
  and provide commented, minimal, self-contained, reproducible code.
 
 



 --
 HUANG Ronggui, Wincent
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html





-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] Draw a rectangle on top of an image using RGtk2?

2009-05-23 Thread Ronggui Huang
Dear all,

I use gtkImageFromFile to display an image. Then I want to do some
gsignal to handle mouse event. I click the mouse and move a another
position and release. I can get the position of the firs click and the
release position,  then I would to draw a rectangle to display the
region I have selected. I need some hints on what functions should I
look for. I tried to google but don't know how.

Thanks.

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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and provide commented, minimal, self-contained, reproducible code.


Re: [R] Draw a rectangle on top of an image using RGtk2?

2009-05-23 Thread Ronggui Huang
Thanks, Michael. Just one more follow-up question. Is there other way
to get the GdkDrawable (here da2) without using - or other
assignment operation from within expose_fn? I thought
da$GetRootWindow() would work, but it does not.

da - gtkDrawingArea()
da2 - NULL

expose_fn - function(widget,event,...){
img - gdkPixbufNewFromFile(/media/wind/Pictures/kaehatu.jpg)$retval
da2 -widget[[window]]
gdkDrawPixbuf(da2, gc = NULL, pixbuf=img,
event[[area]][[x]], event[[area]][[y]],
event[[area]][[x]], event[[area]][[y]],
event[[area]][[width]], event[[area]][[height]])
 return(FALSE)
}
gSignalConnect(da,expose-event,expose_fn)
w-gtkWindow(show=F)
w$SetSizeRequest(400,300)
w$Add(da)
w$Show()

dgc - gdkGCNew(da2)
gdkGCSetLineAttributes(dgc, line.width=2, line.style=solid,round,round)
gdkDrawRectangle(da2,dgc,FALSE,10,10,100,100)


Ronggui

2009/5/23 Michael Lawrence mflaw...@fhcrc.org:


 On Fri, May 22, 2009 at 11:27 PM, Ronggui Huang ronggui.hu...@gmail.com
 wrote:

 Dear all,

 I use gtkImageFromFile to display an image. Then I want to do some
 gsignal to handle mouse event. I click the mouse and move a another
 position and release. I can get the position of the firs click and the
 release position,  then I would to draw a rectangle to display the
 region I have selected. I need some hints on what functions should I
 look for. I tried to google but don't know how.

 The GtkImage widget is just for showing images. If you want to start doing
 interactive graphics, I'd suggest moving to the more general GtkDrawingArea
 widget and connecting to the expose-event signal. You can then use GdkPixbuf
 for loading and drawing the image onto the drawing area. And then draw a
 rectangle on top with gdkDrawRectangle().

 See demos drawingArea and images.

 Michael


 Thanks.

 --
 HUANG Ronggui, Wincent
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html

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 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Trouble installing package 'systemfit'

2009-05-20 Thread Ronggui Huang
Have you tried another mirror? It seems that downloaded file is incomplete.


2009/5/20 Rui Wang r...@hawaii.edu:
 I tried unnder R 2.9.0 and R 2.8.1. Both versions failed to install 
 'systemfit'.
 I downloaded file 'systemfit_1[1].0-8.zip' to install the package.
 I am using Windows 2000 service pack 4.

 The error message is:

 Error in gzfile(file, r) : cannot open the connection
 In addition: Warning message:
 In gzfile(file, r) :
  cannot open compressed file 'systemfit_1[1].0-8/DESCRIPTION', probable 
 reason 'No such file or directory'

 Thanks!

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Remove objects names like character String

2009-05-19 Thread Ronggui Huang
I don't get the error you mention:

 site1_data-1
 site2_data-2
 site3_data-3
 for (i in 1:3) paste(site,i,_data,sep=)


In my example, another way is: rm(list=paste(site,1:3,_data,sep=))

Or you can use rm(list=ls(pattern=you pattern)), in my example, it is:
rm(list=ls(pattern=site[1-3]_data))

Ronggui

2009/5/19 Katharina May may.kathar...@googlemail.com:
 Hi,

 how can I use rm() on objects named like:
 paste(site,i,_data,sep=) while looping
 through i?
 I tried rm(paste(site,i,_data,sep=)) but I get the error that
 rm() must contain names or
 text strings which is confusing me as I thought paste() would create
 something like that...?

 Thanks,


         Katharina



 --
 Time flies like an arrow, fruit flies like bananas.

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] How do you save in R?

2009-05-18 Thread ronggui
I would second Dieter's point.

2009/5/18 Dieter Menne dieter.me...@menne-biomed.de:
 Patrick Burns pburns at pburns.seanet.com writes:


 I disagree with Dieter's last point.
 Whether you use 'attach' or 'load'
 should depend on whether you want the
 objects in the file to remain separate
 ('attach') or mixed into the global
 environment ('load').


 Technically a good point, but I found it helpful for starters who want to
 avoid the inferno of what's attached now? not to use it at all.
 My suggestion is to use with() instead because it has a higher locality.

 I know, many of the examples use attach.

 Dieter

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Do you use R for data manipulation?

2009-05-11 Thread ronggui
2009/5/6 Emmanuel Charpentier charp...@bacbuc.dyndns.org:
 Le mercredi 06 mai 2009 à 00:22 -0400, Farrel Buchinsky a écrit :
 Is R an appropriate tool for data manipulation and data reshaping and data
 organizing?
 [ Large Snip ! ... ]

 Depends on what you have to do.

 I've done what can be more or less termed data management with almost
 uncountable tools (from Excel (sigh...) to R with SQL, APL, Pascal, C,
 Basic (in 1982 !), Fortran and even Lisp in passing...).


 SQL has strong points : join is, to my tastes, more easily expressed in
 SQL than in most languages, projection and aggregation are natural.

 However, in SQL, there is no natural ordering of row tables, which
 makes expressing algorithms using this order difficult. Try for example
 to express the differences of a time series ... (it can be done, but it
 is *not* a pretty sight).

 On the other hand, R has some unique expressive possibilities (reshape()
 comes to mind).

 So I tend to use a combination of tools : except for very small samples,
 I tend to manage my data in SQL and with associated tools (think data
 editing, for example ; a simple form in OpenOffice's Base is quite easy
 to create, can handle anything for which an ODBC driver exists, and
 won't crap out for more than a few hundreds line...). finer manipulation
 is usually done in R with  native tools and sqldf.

 But, at least in my trade, the ability to handle Excel files is a must
 (this is considered as a standard for data entry. Sigh ...). So the
 first task is usually a) import data in an SQL database, and b) prepare
 some routines to dump SQL tables / R dataframes in Excel tor returning
 back to the original data author...

I don't think Excel is  a standard tool for data entry. Epidata entry
is much more professional.


 HTH

                                        Emmanuel Charpentier

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Splitting a vector into equal groups

2009-05-04 Thread ronggui
lattice:::equal.count may be what you want.

2009/5/4 utkarshsinghal utkarsh.sing...@global-analytics.com:
 Hi All,

 I have vector of length 52, say, x=sample(30,52,replace=T). I want to
 sort x and split into five *nearly equal groups*. Note that the
 observations are repeated in x so in case of a tie I want both the
 observations to fall in same group.
 This seems a very common task to do, but still I couldn't find an R
 function to do this. Any help would be highly appreciated.

 Regards
 Utkarsh



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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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[R] Encoding issue with replacement operation

2009-05-03 Thread ronggui
I have a length-1 character vector x, and I want to replace ' in the
character into ''. What I do now is to iconv x into suitable current
Encoding, then use gsub. It works well if I knows what x is (e.g.
Chinese charater), as I can use suitable locales to handle it.

### it works
x- some chinese character with ' in it
Encoding(x) - UTF-8
Sys.setlocale(,CHS)
gsub(','',x)
##

It would be great if I can achieve the same effect without the
suitable locales setting (e.g. even the Sys.setlocale(,English)
instead of Sys.setlocale(,CHS)). Is it possible? Thanks.

-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] evaluate a expression

2009-05-02 Thread ronggui
 eval(parse(text=expr))
[1] 15


2009/5/2 Ning Ma pnin...@gmail.com:
 Hi,

 I am new to R. Can anyone tell me how to evaluate an expression stored
 in a string?
 such as:
 expr - 3*5
 I want to get the result 15.

 Thanks in advance.

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] issue building my own package... moving from Apple OS to Windows

2009-04-24 Thread ronggui
Yeah, you have to build a binary package for windows, unless you just
want to simply source all the functions into R.

2009/4/24 Daryl Morris dar...@u.washington.edu:
 Hello,
 I have written my own very simple package.  On an Apple, I was able to run
 through the R CMD build and R CMD check successfully.  I have also
 installed the package, and successfully loaded the library on my Apple.

 This package is written entirely in R and requires no compilation.

 I am trying to move the package to a Windows machine.

 I (perhaps naively) thought, given that it contains no code requiring
 compilation, that I should just be able to take the .tar.gz file and
 directly install it in Windows.  This didn't work.  Nor did translating'
 the contents of the .tar.gz file into a .zip file.

 I was about to provide the errors, but more googling on this issue suggests
 that maybe what I'm trying to do is impossible.

 Do I really have to build on a Windows box ... even when the package
 requires no compilation?  Is there no simple translation tool available for
 this case?

 thank you, Daryl
 U. Washington Biostatistics

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City University of Hong Kong
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Re: [R] issue building my own package... moving from Apple OS to Windows

2009-04-24 Thread ronggui
I don't think it is wired. Just like you cannot install a program in
Mac using .exe or install in Windows using .app. Once you have build a
binary package for windows, you/others can install it by
packages--install packages from local zip file

Best

2009/4/25 Daryl Morris dar...@u.washington.edu:
 Thanks Mark,
 That was it.  (ie the --binary option on R CMD build)

 I'll just state for the web-o-sphere (just in case it helps any one else)
 that part of my confusion in building this came from misunderstanding what
 they call source and what the call binary in this environment.

 I always think of source as something that must be compiled into a binary
 (like C-code for instance).  And I guess I didn't think the process of
 making some R functions into a loadable package was compiling.  I thought
 it was more like wrapping.  So, when the documentation referred to source
 packages, I didn't think it was talking about what I was doing.  Nor did I
 think I had a binary package.

 Live and learn I guess.

 It's still weird to me that I have to install source packages from the
 command line.  But I'm through the learning curve now, so I'll pipe down.

 Thanks to everyone who responded!

 Daryl Morris
 Univ. of Washington Biostatistics



 markle...@verizon.net wrote:

 Hii Daryl:  to install from the GUI or just generally on windows, build it
 so that it's by binary by doing R CMD BUILD --binary whatever.

 that will create a zip file that you can either extract using winzip or
 install from the gui.
 john chambers new  book explains some of this but, i  still found it
 difficult ( and got help also )  so
 I know where you're coming from.

 if you want relevant  package tutorials: duncan murdoch ,, friedrich leisch
 and alan lenarcic all have them on the web.  but i think you are way past
 the point where you need them. ( and I couldn't
 get them to work anyway but they were still quite helpful ).

 as far as not needing Perl, I don't know how to do that ? I think they are
 changing the CMD
 commands to use R rather than Perl so, when that is finished, you won't need
 Perl.

 oh, if you do do any of those tutorials and get any of them to woprk, let me
 know because
 I couldn't. thanks.

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] to extract data

2009-04-20 Thread ronggui
If Year is numeric data, then you can use:
beechworth.dt.2 - subset(beechworth.dt, Year=1997  Year =2008)
If it is character, then you can use:
beechworth.dt.2 - subset(beechworth.dt, Year %in% as.character(1997:2008))

2009/4/20 Roslina Zakaria zrosl...@yahoo.com:

 Hi R-users,

 I have a set of data from 1958-2009, how do I extract the data from 1927 and 
 2007?

 beechworth.dt
  Year Month  Rain
 1    1858 3  21.8
 2    1858 4  47.0
 3    1858 5  70.1
 4    1858 6  78.7
 5    1858 7 101.6
 6    1858 8 129.8
 7    1858 9  80.8
 8    1858    10  41.9
  ...

  2009    ..


 I tried:

  beechworth.dt.2 - beechworth.dt[beechworth.dt$Year==1927:2007,]

 and got

 Warning message:
 In beechworth.dt$Year == 1927:2007 :
   longer object length is not a multiple of shorter object length

 Thank you so much for any help given.




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Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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and provide commented, minimal, self-contained, reproducible code.


Re: [R] explicit documentation (was: get() versus getAnywhere())

2009-04-19 Thread ronggui
It is always unfair to complain about volunteer work, and what you
should do is to make contributions.

2009/4/20 Rolf Turner r.tur...@auckland.ac.nz:

 On 19/04/2009, at 8:59 PM, Patrick Burns wrote:

 Rolf Turner wrote:

 On 17/04/2009, at 10:21 PM, Duncan Murdoch wrote:

 Benjamin Tyner wrote:

 Many thanks Duncan. Perhaps this merits a more explicit note in the
 documentation?


 The quote I gave is from the documentation.  How could it be more
 explicit?

 This is unfortunately typical of the attitude of R-core people toward the
 documentation.  ``It's clear.'' they say.  ``It's explicit.''  Clear and
 explicit once you *know* what it's saying.  Not before, but.

 I think this unfairly blames R-core for being human.

        Why is this unfair?  R-core is supposed to be superhuman! :-)

                cheers,

                        Rolf

 ##
 Attention:\ This e-mail message is privileged and confid...{{dropped:9}}

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Neural Networks in R - Query

2009-04-18 Thread ronggui
More specifically, it is nnet package.

Best

2009/4/18 Tobias Verbeke tobias.verb...@telenet.be:
 Hi Lars,

 I'd like to ask your guidance regarding the following two questions: (i) I
 just finished reading Chris Bishop's book Neural Networks for Pattern
 Recognition. Although the book gave me good theoretical foundation about
 NN, I'm now looking for something more practical regarding architecture
 selection strategies. Is there any good reference about best practices
 for
 architecure selection? (ii) Which R package provides a good implementation
 of NN?

 The CRAN Task View on Machine Learning

 http://cran.r-project.org/web/views/MachineLearning.html

 opens with the following topical item:

 o Neural Networks : Single-hidden-layer neural network are implemented
 in package nnet as part of the VR  bundle (shipped with base R).

 HTH,
 Tobias

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-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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Re: [R] Using trace

2009-04-17 Thread ronggui
Here is a partial solution:

 trace(fact,quote({cat(sprintf(x= %i\n,x));return}),print=T)
[1] fact
 fact(4)
Tracing fact(4) on entry
x= 4
Tracing fact(x - 1) on entry
x= 3
Tracing fact(x - 1) on entry
x= 2
Tracing fact(x - 1) on entry
x= 1
Tracing fact(x - 1) on entry
x= 0
[1] 24


2009/4/17 Stavros Macrakis macra...@alum.mit.edu:
 Well, yes, of course I could add the code to the function by hand.  I
 could also calculate square roots by hand.  But -- as in every other
 basic programming environment -- there exists an R function 'trace'
 which appears to automate the process, and I can't figure out how to
 use it to handle this most elementary and standard case.  Clearly I'm
 missing something.

              -s

 On Thu, Apr 16, 2009 at 9:26 PM, ronggui ronggui.hu...@gmail.com wrote:
 Can you just print what you need to know? For example:

 fact - function(x) {
 + if(x1) ans - 1 else ans - x*fact(x-1)
 + print(sys.call())
 + cat(sprintf(X is %i\n,x))
 + print(ans)
 + }
 fact(4)
 fact(x - 1)
 X is 0
 [1] 1
 fact(x - 1)
 X is 1
 [1] 1
 fact(x - 1)
 X is 2
 [1] 2
 fact(x - 1)
 X is 3
 [1] 6
 fact(4)
 X is 4
 [1] 24


 2009/4/13 Stavros Macrakis macra...@alum.mit.edu:
 I would like to trace functions, displaying their arguments and return
 value, but I haven't been able to figure out how to do this with the
 'trace' function.

 After some thrashing, I got as far as this:

    fact - function(x) if(x1) 1 else x*fact(x-1)
    tracefnc - function() dput(as.list(parent.frame()),  #
 parent.frame() holds arg list
                                                control=NULL)
    trace(fact,tracer=tracefnc,print=FALSE)

 but I couldn't figure out how to access the return value of the
 function in the 'exit' parameter.  The above also doesn't work for
 ... arguments.  (More subtly, it forces the evaluation of promises
 even if they are otherwise unused -- but that is, I suppose, a weird
 and obscure case.)

 Surely someone has solved this already?

 What I'm looking for is something very simple, along the lines of
 old-fashioned Lisp trace:

 defun fact (i) (if ( i 1) 1 (* i (fact (+ i -1)
 FACT
 (trace fact)
 (FACT)
 (fact 3)
  1 (FACT 3)
    2 (FACT 2)
      3 (FACT 1)
        4 (FACT 0)
        4 (FACT 1)
      3 (FACT 1)
    2 (FACT 2)
  1 (FACT 6)
 6

 Can someone help? Thanks,

         -s

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




 --
 HUANG Ronggui, Wincent
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html





-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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Re: [R] source code for prompt()

2009-04-17 Thread ronggui
 prompt
function (object, filename = NULL, name = NULL, ...)
UseMethod(prompt)
environment: namespace:utils
 methods(prompt)
[1] prompt.data.frame* prompt.default*

   Non-visible functions are asterisked
 getAnywhere(prompt.default)


2009/4/18 Markus Loecher markus.loec...@gmail.com:
 Dear R community,
 pardon my ignorance but how would you get the source code fornon-visible
 functions ?

 For example, I would like to see and modify the source code for the prompt()
 function.

 Thanks!

 Markus

        [[alternative HTML version deleted]]

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 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Using trace

2009-04-16 Thread ronggui
Can you just print what you need to know? For example:

 fact - function(x) {
+ if(x1) ans - 1 else ans - x*fact(x-1)
+ print(sys.call())
+ cat(sprintf(X is %i\n,x))
+ print(ans)
+ }
 fact(4)
fact(x - 1)
X is 0
[1] 1
fact(x - 1)
X is 1
[1] 1
fact(x - 1)
X is 2
[1] 2
fact(x - 1)
X is 3
[1] 6
fact(4)
X is 4
[1] 24


2009/4/13 Stavros Macrakis macra...@alum.mit.edu:
 I would like to trace functions, displaying their arguments and return
 value, but I haven't been able to figure out how to do this with the
 'trace' function.

 After some thrashing, I got as far as this:

    fact - function(x) if(x1) 1 else x*fact(x-1)
    tracefnc - function() dput(as.list(parent.frame()),  #
 parent.frame() holds arg list
                                                control=NULL)
    trace(fact,tracer=tracefnc,print=FALSE)

 but I couldn't figure out how to access the return value of the
 function in the 'exit' parameter.  The above also doesn't work for
 ... arguments.  (More subtly, it forces the evaluation of promises
 even if they are otherwise unused -- but that is, I suppose, a weird
 and obscure case.)

 Surely someone has solved this already?

 What I'm looking for is something very simple, along the lines of
 old-fashioned Lisp trace:

 defun fact (i) (if ( i 1) 1 (* i (fact (+ i -1)
 FACT
 (trace fact)
 (FACT)
 (fact 3)
  1 (FACT 3)
    2 (FACT 2)
      3 (FACT 1)
        4 (FACT 0)
        4 (FACT 1)
      3 (FACT 1)
    2 (FACT 2)
  1 (FACT 6)
 6

 Can someone help? Thanks,

         -s

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Equivalent to Stata egen

2009-04-16 Thread ronggui
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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and provide commented, minimal, self-contained, reproducible code.


Re: [R] (no subject)

2009-04-11 Thread ronggui
?par and please note the ctex.main parameter.

BTW, it would be better if you use an informative email subject.

Best

2009/4/11 Mary Winter statsstud...@hotmail.com:



 Hi,



 Is it possible to increase just the text size of the main title on my graph? 
 If so, how?!



 Along the same lines..along the x axis at a lot of the labels overlap each 
 other, is it possible to make this text smaller of write it on two lines so 
 it doesn't take up as much space along the x axis?



 Any help would be much appreciated!



 Mary

 _


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 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] re trieve R session?

2009-04-02 Thread ronggui
Does load() work?

2009/4/3 purpleshirt yonggang@citadelgroup.com:

 I login Linux machine on my windows desktop via Exceed, then run R.

 Somehow my desktop got rebooted by accident, when I re-login, I can see the
 R session is still listed there (run top). My question is, is there any way
 I can bring back that R session?

 Thanks,
 --
 View this message in context: 
 http://www.nabble.com/retrieve-R-session--tp22857303p22857303.html
 Sent from the R help mailing list archive at Nabble.com.

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] How can I use R through command line?

2009-04-01 Thread ronggui
you can use source() to Read R Code from a File.

2009/4/1 minben minb...@gmail.com:
  Suppose I have written a R program and saved it in test.R . How can I
 call the program in the command line?

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] package sowas

2009-03-22 Thread ronggui
There is a binary version for Windows in the homepage of it.
http://www.cru.uea.ac.uk/~douglas/software/sowas_0.94.zip

You can find more on http://tocsy.agnld.uni-potsdam.de/wavelets/

Best

2009/3/22 stephen sefick ssef...@gmail.com:
 You must go to his website because it is not on CRAN.  I have built it
 on mac osx by installing it with R CMD install.  This should work on
 other unix platforms.

 Stephen Sefick

 On Sat, Mar 21, 2009 at 9:26 PM,  mau...@alice.it wrote:
 I cannot find sowas package by Douglas Mauran in CRAN packages list-
 On which platforms does sowas run ?
 Has anybody used such a package at all ?

 hHank you very much,
 Maura



 tutti i telefonini TIM!


        [[alternative HTML version deleted]]

 __
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 and provide commented, minimal, self-contained, reproducible code.




 --
 Stephen Sefick

 Let's not spend our time and resources thinking about things that are
 so little or so large that all they really do for us is puff us up and
 make us feel like gods.  We are mammals, and have not exhausted the
 annoying little problems of being mammals.

                                                                -K. Mullis

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] R: package sowas

2009-03-22 Thread ronggui
Executable file is not required.  You must install R first, then you
click packages--install package(s) from local zip file ... to
install the sowas package.

Best

2009/3/22  mau...@alice.it:
 I downloaded it. But I could not find the installation executable file.
 How can I install it on Windows XP ?
 Thank you.
 Maura



 -Messaggio originale-
 Da: ronggui [mailto:ronggui.hu...@gmail.com]
 Inviato: dom 22/03/2009 10.47
 A: mau...@alice.it; r-help@r-project.org
 Oggetto: Re: [R] package sowas

 There is a binary version for Windows in the homepage of it.
 http://www.cru.uea.ac.uk/~douglas/software/sowas_0.94.zip

 You can find more on http://tocsy.agnld.uni-potsdam.de/wavelets/

 Best

 2009/3/22 stephen sefick ssef...@gmail.com:
 You must go to his website because it is not on CRAN.  I have built it
 on mac osx by installing it with R CMD install.  This should work on
 other unix platforms.

 Stephen Sefick

 On Sat, Mar 21, 2009 at 9:26 PM,  mau...@alice.it wrote:
 I cannot find sowas package by Douglas Mauran in CRAN packages list-
 On which platforms does sowas run ?
 Has anybody used such a package at all ?

 hHank you very much,
 Maura



 tutti i telefonini TIM!


        [[alternative HTML version deleted]]

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




 --
 Stephen Sefick

 Let's not spend our time and resources thinking about things that are
 so little or so large that all they really do for us is puff us up and
 make us feel like gods.  We are mammals, and have not exhausted the
 annoying little problems of being mammals.

                                                                -K. Mullis

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




 --
 HUANG Ronggui, Wincent
 Tel: (00852) 3442 3832
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html

 A sociologist is someone who, when a beautiful women enters the room
 and everybody look at her, looks at everybody.



 Alice Messenger ;-) chatti anche con gli amici di Windows Live Messenger e
 tutti i telefonini TIM!
 Vai su http://maileservizi.alice.it/alice_messenger/index.html?pmk=footer



-- 
HUANG Ronggui, Wincent
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Multilevel modeling using R

2009-03-17 Thread ronggui
You can use intervals to get the Confidence intervals of fixed and
random effects.

Best

2009/3/17 WONG, Ka Yau ka...@ied.edu.hk:
 Dear All,

         I use R to conduct multilevel modeling. However, I have a problem 
 about the interpretation of random effect. Unlike the variables in fixed 
 effects, the variables in random effects have not shown the p-value, so I 
 don't know whether they are significant or not? I want to obtain this figure 
 to make the decision.  Thanks a lot!

 Below is the syntax and output of my program:

 library(nlme)
 dataset - read.csv(d:/dataset.csv)
 lme11 - lme(Overall~1, random=~1|School, method=ML, data=dataset)
 summary(lme11)

 Linear mixed-effects model fit by maximum likelihood
 Data: dataset
       AIC      BIC   logLik
  12637.06 12656.27 -6315.53

 Random effects:
  Formula: ~1 | School
                (Intercept)  Residual
 StdDev:   0.2912031 0.9894488        (-- No p-value)

 Fixed effects: Overall ~ 1
                      Value      Std.Error      DF     t-value     p-value
 (Intercept) 0.7755495 0.06758038  11.47596       0            (-- Have 
 p-value)

 Standardized Within-Group Residuals:
          Min                  Q1                Med                Q3         
          Max
 -3.797466473 -0.661750231 -0.007874993  0.652625939  3.549169733

 Number of Observations: 4464
 Number of Groups: 20


 Best Regards,
 Tommy
 Research Assistant of HKIEd

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 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] errors when install RSQLite

2009-03-17 Thread ronggui
It seems you use Unix-like OS. Does it happen that you did not use
root to install the package? BTW, RSQLite does not require sqlite
installed separately, it is embedded in the package.

Best

2009/3/17 Dongyan Song yzhsk...@hotmail.com:

 Dear all,

 I am trying to install RSQLite package since I want to install sqldf, and
 I used
 install.packages(RSQLite) first, which gave Error message as below:

 make: *** [RS-DBI.o] Error 1
 chmod: cannot access `/usr/lib/R/library/RSQLite/libs/*': No such file or
 directory
 ERROR: compilation failed for package 'RSQLite'
 ** Removing '/usr/lib/R/library/RSQLite'
 ** Restoring previous '/usr/lib/R/library/RSQLite'

 The downloaded packages are in
        /tmp/RtmpZwBFdo/downloaded_packages
 Updating HTML index of packages in '.Library'
 Warning message:
 In install.packages(RSQLite) :
  installation of package 'RSQLite' had non-zero exit status

 And then I tried
 # R CMD INSTALL RSQLite_0.7-1.tar.gz
 # R CMD INSTALL
 --configure-args=--with-sqlite3-dir=/usr/lib/sqlite-3.6.11/bld/
 RSQLite_0.7-1.tar.gz
 # R CMD INSTALL --configure-args=--with-sqlite-dir=/usr/bin
 RSQLite_0.7-1.tar.gz
 and all of them gave similar error messages.

 I have sqlite installed in my computer, in the directory /usr/bin, and I do
 not have a clue how to install it then. Thank you for help!

 Best,
 Dongyan Song
 --
 View this message in context: 
 http://www.nabble.com/errors-when-install-RSQLite-tp22541474p22541474.html
 Sent from the R help mailing list archive at Nabble.com.

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

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Re: [R] Multilevel modeling using R

2009-03-17 Thread ronggui
If you want to know how to calculate the CI, you can study the code of
this function. You can access the code by nlme:::intervals.lme.

Best

2009/3/17 WONG, Ka Yau ka...@ied.edu.hk:
    No standard deviation of variable in the random effect is
 provided. How to construct CI?

 Best Regards,
 Tommy
 Research Assistant of HKIEd
 
 From: ronggui [mailto:ronggui.hu...@gmail.com]
 Sent: 17/3/2009 [Tue] 14:10
 To: WONG, Ka Yau
 Cc: r-help@r-project.org
 Subject: Re: [R] Multilevel modeling using R

 You can use intervals to get the Confidence intervals of fixed and
 random effects.

 Best

 2009/3/17 WONG, Ka Yau ka...@ied.edu.hk:
 Dear All,

         I use R to conduct multilevel modeling. However, I have a problem
 about the interpretation of random effect. Unlike the variables in fixed
 effects, the variables in random effects have not shown the p-value, so I
 don't know whether they are significant or not? I want to obtain this figure
 to make the decision.  Thanks a lot!

 Below is the syntax and output of my program:

 library(nlme)
 dataset - read.csv(d:/dataset.csv)
 lme11 - lme(Overall~1, random=~1|School, method=ML, data=dataset)
 summary(lme11)

 Linear mixed-effects model fit by maximum likelihood
 Data: dataset
       AIC      BIC   logLik
  12637.06 12656.27 -6315.53

 Random effects:
  Formula: ~1 | School
                (Intercept)  Residual
 StdDev:   0.2912031 0.9894488        (-- No p-value)

 Fixed effects: Overall ~ 1
                      Value      Std.Error      DF     t-value     p-value
 (Intercept) 0.7755495 0.06758038  11.47596       0            (--
 Have p-value)

 Standardized Within-Group Residuals:
          Min                  Q1                Med                Q3
              Max
 -3.797466473 -0.661750231 -0.007874993  0.652625939  3.549169733

 Number of Observations: 4464
 Number of Groups: 20


 Best Regards,
 Tommy
 Research Assistant of HKIEd

        [[alternative HTML version deleted]]

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 --
 HUANG Ronggui, Wincent
 Tel: (00852) 3442 3832
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Home page: http://asrr.r-forge.r-project.org/rghuang.html

 A sociologist is someone who, when a beautiful women enters the room
 and everybody look at her, looks at everybody.





-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Re: [R] updating packages?

2009-03-13 Thread ronggui
Maybe they are loaded, use search() to see if they are. If yes, then
use detach() to unload them first.

Best

2009/3/13  rkevinbur...@charter.net:
 I am trying to update the packages that I have installed but I get the 
 following warning messages:

 package 'tseries' successfully unpacked and MD5 sums checked
 Warning: cannot remove prior installation of package 'tseries'
 bundle 'forecasting' successfully unpacked and MD5 sums checked
 Warning: cannot remove prior installation of package 'forecast'

 What does that mean? How can I update these packages?

 Thank you.

 Kevin

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

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Re: [R] HAC corrected standard errors

2009-03-10 Thread ronggui
sandwich package is what you want.

Best

2009/3/10 Shruthi Jayaram shruthi.jayaram...@gmail.com:

 Hi,

 I have a simple linear regression for which I want to obtain HAC corrected
 standard errors, since I have significant serial/auto correlation in my
 residuals, and also potential heteroskedasticity.

 Would anyone be able to direct me to the function that implements this in R?
 It's a basic question and I'm sure I'm missing something obvious here. I
 looked up this post:

 http://www.nabble.com/Re%3A-Moving-Window-regressions-with-corrections-for-Heteroscedasticity-and-Autocorrelations(HAC)-td6075371.html#a6075371

 which recommended that I use the coeftest() function in package lmtest, but
 when I tried to assign an object:

 result - coeftest(regre, NeweyWest), where regre is an object of class lm,
 this returned an error.

 I'd be grateful for any advice, since I'm sure I'm making one of those
 simple bloopers.

 Thanks!

 Shruthi
 --
 View this message in context: 
 http://www.nabble.com/HAC-corrected-standard-errors-tp22430163p22430163.html
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

A sociologist is someone who, when a beautiful women enters the room
and everybody look at her, looks at everybody.

__
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Re: [R] R on netbooks et al?

2009-03-05 Thread ronggui
May I ask what is the OS? Thanks.

2009/3/5 Erik Iverson iver...@biostat.wisc.edu:
 I've installed Ubuntu, Emacs, and R on my Samsung NC10 with 2 GB RAM.  I
 think the keyboard is very usable on the NC10, and it has about 5-7 hours of
 battery life, which is also nice.  R runs just fine on it.  I'd consider
 paying extra for the Samsung just for the keyboard.

 herrdittm...@yahoo.co.uk wrote:

 Dear useRs,

 With the rise of netbooks and 'lifestyle laptops I am tempted to get one
 of these to mainly run R on it. Processor power and hard disk space seem to
 be ok. What I wonder is the handling and feel with respect to R.

 Has anyone here installed or is running R on one of these, and if so, what
 is your experience? Would it be more of a nice looking gadget than a
 feasable platform to do some stats on?

 Many thanks,

 Bernd

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page and public schedule: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] Inference for R Spam

2009-02-24 Thread ronggui
I received it too without the conference registration.

2009/2/24 Wacek Kusnierczyk waclaw.marcin.kusnierc...@idi.ntnu.no:
 Dieter Menne wrote:
 Dear List,

 I registered for the useR conference in Rennes today; half an hour after the
 confirmation I received a first requested newsletter from a company 
 selling a
 product named Inference for R.

 This coincidence might be spurious. Or not, depending on frequency.




 i haven't registered, but have received the newsletter too.

 vQ

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Home page: http://asrr.r-forge.r-project.org/rghuang.html

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Re: [R] basic inquiry regarding write.csv

2009-02-17 Thread ronggui
If the file is a relative path, then it should be in the working
directory. Say, the working directory is E:/my_work_directory (of
course, you can get it by getwd()), and you export a data frame a to
csv by:
write.csv(a, file=a.csv), then the file should be
E:/my_work_directory/a.csv.

Best

2009/2/18 CJ Rubio cjru...@kongju.ac.kr:

 i have a loop which looks likes this:


 data.info - rbind(data.info, cbind(station.id, year, date,
 max.discharge))
 +  y - split(data.info, data.info[station.id])
 +  for (i in names(y))
 {write.csv(y[[i]], file=paste(i, .csv, sep=,))}

 i am wondering, where the file (which i am about to write in .csv format)
 will be saved? i looked at ?write.csv and it says there that :

 file   either a character string naming a file or a
 connection open for writing.  indicates output to the console.

 correct me if i'm wrong but the way i undestand it is, i should have a file
 or a working directory where the .csv will be written.  if for example i
 have a working directory E:/my_work_directory, how can i save this
 splitted files in the same directory?

 can anybody please enlighten me more with write.csv and the argument file?

 thanks..

 --
 View this message in context: 
 http://www.nabble.com/basic-inquiry-regarding-write.csv-tp22073053p22073053.html
 Sent from the R help mailing list archive at Nabble.com.

 __
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

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Re: [R] basic inquiry regarding write.csv

2009-02-17 Thread ronggui
So far, I cannot see any mistake, though the sep= will be more
elegant that sep=,. Are you sure your working directory is
E:/my_work_directory? and is there any error msg?

BTW, a reproducible example will help to get better response from the list.

2009/2/18 CJ Rubio cjru...@kongju.ac.kr:

 thanks for your reply.. is there something wrong with the code i have?
 because it doesn't write the file in the directory that i am using...

 for (i in names(y))
 {write.csv(y[[i]], file=paste(i, .csv, sep=,))}

 thanks again..



 ronggui-2 wrote:

 If the file is a relative path, then it should be in the working
 directory. Say, the working directory is E:/my_work_directory (of
 course, you can get it by getwd()), and you export a data frame a to
 csv by:
 write.csv(a, file=a.csv), then the file should be
 E:/my_work_directory/a.csv.

 Best

 2009/2/18 CJ Rubio cjru...@kongju.ac.kr:

 i have a loop which looks likes this:


 data.info - rbind(data.info, cbind(station.id, year, date,
 max.discharge))
 +  y - split(data.info, data.info[station.id])
 +  for (i in names(y))
 {write.csv(y[[i]], file=paste(i, .csv, sep=,))}

 i am wondering, where the file (which i am about to write in .csv format)
 will be saved? i looked at ?write.csv and it says there that :

 file   either a character string naming a file or a
 connection open for writing.  indicates output to the console.

 correct me if i'm wrong but the way i undestand it is, i should have a
 file
 or a working directory where the .csv will be written.  if for example i
 have a working directory E:/my_work_directory, how can i save this
 splitted files in the same directory?

 can anybody please enlighten me more with write.csv and the argument
 file?

 thanks..

 --
 View this message in context:
 http://www.nabble.com/basic-inquiry-regarding-write.csv-tp22073053p22073053.html
 Sent from the R help mailing list archive at Nabble.com.

 __
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 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




 --
 HUANG Ronggui, Wincent
 Tel: (00852) 3442 3832
 PhD Candidate
 Dept of Public and Social Administration
 City University of Hong Kong
 Homepage: http://ronggui.huang.googlepages.com/

 __
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 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.



 --
 View this message in context: 
 http://www.nabble.com/basic-inquiry-regarding-write.csv-tp22073053p22073393.html
 Sent from the R help mailing list archive at Nabble.com.

 __
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

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Re: [R] Chinese language R email list?

2009-02-10 Thread ronggui
There is one in google group (http://groups.google.com/group/R-Forum),
but the traffic is very low. Personally, I don't see the why we need a
Chinese mail list.

Besides, there are two online forum of R, both of which is quite active.
http://rbbs.biosino.org/Rbbs/forums/list.page
http://cos.name/bbs/thread.php?fid=15

Best

On Wed, Feb 11, 2009 at 8:00 AM, Jonathan Greenberg
greenb...@ucdavis.edu wrote:
 A colleague from China is visiting our lab is working with us on some
 R-based remote sensing projects, and he was curious if there is a r-help
 listserv in Chinese and, if not, if it would be possible to set one up?  I
 didn't see one listed on the Mailing List page on the cran-r website.
  Thanks!

 --j

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

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Re: [R] Frequency and summary statistics table with different variables and categories

2009-01-22 Thread ronggui
Since %male is basically the mean if you code male=1 and female=0,
which is more informative than absolute frequency. So, you may want to
have a glance at doBy package, especially the summaryBy function.

All the best

On Thu, Jan 22, 2009 at 7:17 PM, Stefan Björk stefan.bj...@gmail.com wrote:
 Hello helpers,

 This is probably quite simple, but I'm stuck.

  I want to create a summary statistics table with frequencies and summary
 statistics for a large number of variables. The problem here is that (1)
 there are two different classes of categories (sex, type of substance abuse
 and type of treatent) which overlap, (2) the data for different variables
 should be presented in different ways -- sometimes with relative
 frequencies, other times with mean values.

 The table would finally look something like:

   All  Male  Female Alcohol Drug ...
 Age (mean) (mean) ...
 Sex (% male)(freq) (freq) ...
 Alcohol CS  (mean) (mean) ...
 ...  ...

 Data is in a data frame with quite a lot of columns (variables) and each row
 represents a single case.

 I have found out that part of this can be done with tapply, for example
 tapply(age, sex, mean) and join it with tapply(age, abuse, mean). But how to
 do with frequencies? Or is there an even simpler way?

 /S

[[alternative HTML version deleted]]

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

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Re: [R] converting a factor in numeric values with direct control of the numeric values

2009-01-17 Thread ronggui
I think you have to recode the derived variable of as.numeric(z).

On Sun, Jan 18, 2009 at 12:40 AM, Jörg Groß jo...@licht-malerei.de wrote:
 Hi,

 I know how to convert a factor-variable into a numeric variable via
 as.numeric().

 But how can I control the values that are assigned?


 For example, I have this factor-variable:


 z - c(male, male, female)
 z - as.factor(z)


 And I want to convert male in 3 and female into the numeric value 5 (just
 for the example)

 so that I get:

 [1] 3 3 5


 Thanks for any help!

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

__
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Re: [R] converting a factor in numeric values with direct control of the numeric values

2009-01-17 Thread ronggui
BTW, a better  way to convert factor into a numeric variable is to use
unclass().

On Sun, Jan 18, 2009 at 12:40 AM, Jörg Groß jo...@licht-malerei.de wrote:
 Hi,

 I know how to convert a factor-variable into a numeric variable via
 as.numeric().

 But how can I control the values that are assigned?


 For example, I have this factor-variable:


 z - c(male, male, female)
 z - as.factor(z)


 And I want to convert male in 3 and female into the numeric value 5 (just
 for the example)

 so that I get:

 [1] 3 3 5


 Thanks for any help!

 __
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate
Dept of Public and Social Administration
City University of Hong Kong
Homepage: http://ronggui.huang.googlepages.com/

__
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[R] [R-pkgs] RQDA-0.1-6 is on CRAN

2009-01-03 Thread ronggui
Major new features of RQDA-0.1-6:
GUI:
* GUI for file-organization (e.g searching, categorization etc.).
* GUI for settings (e.g. colors for )

Functions:
* Import a batch of files
* Calculate the relation between two codings, given the coding index
* Gives a summary of coding and inter-code relationship

-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

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Re: [R] QCA adn Fuzzy

2008-12-22 Thread ronggui
Dear  Gott and Prof Adrian DUSA ,

I am learning fuzzy set QCA and recently, I just write a function to
construct a truthTable, which can be passed to QCA:::eqmcc to do the
Boolean minimization.  The function is here:
http://code.google.com/p/asrr/source/browse/trunk/R/fs_truthTable.R
and the help page is:
http://code.google.com/p/asrr/source/browse/trunk/man/fs_truthTable.rd
and the example dataset  from Ragin (2009) is here
http://code.google.com/p/asrr/source/browse/trunk/data/Lipset_fs.rda

Best

On Wed, Mar 8, 2006 at 2:13 AM, Adrian DUSA dusa.adr...@gmail.com wrote:
 Dear Prof. Gott,

 On Monday 06 March 2006 14:37, R Gott wrote:
 Does anybody know of aything that will help me do Quantitiative
 Comparative Analysis (QCA) and/or Fuzzy set analysis??  Or failing that
 Quine?
 ta
 rg
 Prof R Gott
 Durham Univesrity
 UK

 There is a package called QCA which (in its first release) performs only
 crisp set analysis. I am currently adapting a Graphical User Interface, but
 the functions are nevertheless usefull.
 For fuzzy set analysis, please consider Charles Ragin's web site
 http://www.u.arizona.edu/%7Ecragin/fsQCA/index.shtml
 which offers a software (still not complete, though). Also to consider
 is a good software called Tosmana (http://www.tosmana.org/) which does
 multi-value
 QCA.
 I am considering writing the inclusion algorithms in the next releases of  my
 package, but it is going to take a little while. Any contributions and/or
 feedback are more than welcome.

 I hope this helps you,
 Adrian


 --
 Adrian DUSA
 Romanian Social Data Archive
 1, Schitu Magureanu Bd
 050025 Bucharest sector 5
 Romania
 Tel./Fax: +40 21 3126618 \
  +40 21 3120210 / int.101

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

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Re: [R] Functions in R like lincom and nlcom of Stata

2008-12-13 Thread ronggui
There is function for linear combination in car package as well.

Best
Ronggui

On Sun, Dec 14, 2008 at 1:42 PM, Andrew Robinson
a.robin...@ms.unimelb.edu.au wrote:

 estimable in the gmodels package provides point estimates, standard
 errors and confidence intervals for arbitrary linear combinations of
 model parameters.  I don't know for non-linear combinations, though.

 Cheers

 Andrew

 On Sat, Dec 13, 2008 at 11:33:12PM -0600, Stas Kolenikov wrote:
 Those commands provide point estimates, standard errors and confidence
 intervals based on linear combination of parameters or
 linearization/delta-method, respectively. R's contrasts appear to be
 limited to a single factor and combinations that sum up to zero.

 I am too so used to this Stata's concept, I now think it's odd R does
 not seem to have it readily identifiable in two-three search commands.
 And I would not believe R does not have this functionality, it must be
 hiding somewhere! :))

 On 12/13/08, David Winsemius dwinsem...@comcast.net wrote:
 
   On Dec 12, 2008, at 11:14 AM, Marc Mar? Dell'Olmo wrote:
 
 
   Hello all,
  
   Does anyone know if there exists any function in R that resembles the
   lincom and nlcom of STATA?. These functions computes point
   estimates, standard errors, significance levels, confidence intervals,
   etc. for linear and non linear combinations of previous estimated
   parameters. Down here you've got links to descriptions of the
   functions of STATA
  
   nlcom:
   http://www.stata.com/help.cgi?nlcom
   lincom:
   http://www.stata.com/help.cgi?lincom
  
 
   I did not find a description of the mathematical operations that let me
  understand exactly what lincom is doing, but suspect that you should be
  looking at how R handles contrasts. The help pages reference ch 2 of
  Statistical Models in S. The search at the console prompt would be:
 
   ?C
   ?contrasts
   ?se.contrast
   ?model.tables
 

 --
 Stas Kolenikov, also found at http://stas.kolenikov.name
 Small print: I use this email account for mailing lists only.

 __
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 --
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 Department of Mathematics and StatisticsTel: +61-3-8344-6410
 University of Melbourne, VIC 3010 Australia Fax: +61-3-8344-4599
 http://www.ms.unimelb.edu.au/~andrewpr
 http://blogs.mbs.edu/fishing-in-the-bay/

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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

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[R] How to mimic select.list using RGtk2/gWidgetsRGtk2?

2008-12-12 Thread ronggui
I want to write a function mimic the function of select.list(), here
is my preliminary version.

select - function(x,multiple=TRUE,...){
ans-new.env()
g - gwindow(title=title,wid=200,heigh=500)
x1-ggroup(FALSE,con=g)
x2-gtable(x,multiple=multiple,con=x1,expand=TRUE)
gbutton(OK,con=x1,handler=function(h,...){
value - svalue(x2)
if (length(value)==0) value=
assign(selected,value,env=h$action$env)
dispose(x1)
},action=list(env=ans))
ans
}

However, it doesn't behave as what I want.  What I want is that: for
{select(c(a,b)); foo()}, foo() only runs after I have clicked the
OK button of select(). Any hints?

Thanks.
-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

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Re: [R] How to mimic select.list using RGtk2/gWidgetsRGtk2?

2008-12-12 Thread ronggui
Hi, John,

Thanks very much. I have another question about gformlayout().

addSettingGUI - function(container){
Setting - list(type = ggroup,
  horizontal = FALSE,
  children = list(
list(type=fieldset,
 columns = 1,
 label = Settings,
 label.pos = top,
 label.font = c(weight=bold),
 children = list(
   list(name = owner,
label = Name of Coder,
type = gedit,
text = 
)
)
 )
)
)
SettingFL - gformlayout(Setting, cont = container, expand=TRUE)

}

g-gwindow(width=50)
addSettingGUI (g)

## It seems that argument of width in gwindow has no effects on the
resultant widget
## How can can re-scale the width of the resultant widget?
## thanks.

Ronggui

On Sat, Dec 13, 2008 at 1:12 PM, John Verzani verz...@math.csi.cuny.edu wrote:
 ronggui ronggui.huang at gmail.com writes:


 I want to write a function mimic the function of select.list(), here
 is my preliminary version.

 select - function(x,multiple=TRUE,...){
 ans-new.env()
 g - gwindow(title=title,wid=200,heigh=500)
 x1-ggroup(FALSE,con=g)
 x2-gtable(x,multiple=multiple,con=x1,expand=TRUE)
 gbutton(OK,con=x1,handler=function(h,...){
 value - svalue(x2)
 if (length(value)==0) value=
 assign(selected,value,env=h$action$env)
 dispose(x1)
 },action=list(env=ans))
 ans
 }


 Hi,

 You can call foo in the handler above or for gWidgetsRGtk2 use gbasicdialog
 which will create a modal dialog:

 options(guiToolkit=RGtk2)
 library(gWidgets)

 select - function(x,multiple=TRUE,...){
  ans-new.env()

  x1-ggroup(horizontal=FALSE) # no parent container here
  x2-gtable(x,multiple=multiple,con=x1,expand=TRUE)
  ret - gbasicdialog(title=select a widget, 
 widget=x1,handler=function(h,...){
value - svalue(x2)
if (length(value)==0) value=
assign(selected,value,env=h$action$env)
dispose(x1)
  },action=list(env=ans))
  ans
 }

 ans - select(c(a,b))
 print(ans$selected)

 Hope that helps.

 However, it doesn't behave as what I want.  What I want is that: for
 {select(c(a,b)); foo()}, foo() only runs after I have clicked the
 OK button of select(). Any hints?

 Thanks.

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

__
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[R] Sorting problem

2008-12-11 Thread ronggui
Sys.setlocale(,C)
x1 - as.character(date()) # I use date to record the time, and save
it to sqlite database, to it converted to character
x1_2 - strptime(x1, %a %b %d %H:%M:%S %Y)

x2 - as.character(date())
x2_2 - strptime(x2, %a %b %d %H:%M:%S %Y)

X-c(x1_2,x2_2)

order(X)  ## I want to get the permutation other than the sorted vector.
## order(X) works in windows but not Linux.

any alternative way to the the permutation?

-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

__
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Re: [R] Sorting problem

2008-12-11 Thread ronggui
Sorry for the last post. I didn't use the latest version of R. It
works under Linux as well for R-2.8.0 patch.

Best

On Thu, Dec 11, 2008 at 11:34 PM, ronggui [EMAIL PROTECTED] wrote:
 Sys.setlocale(,C)
 x1 - as.character(date()) # I use date to record the time, and save
 it to sqlite database, to it converted to character
 x1_2 - strptime(x1, %a %b %d %H:%M:%S %Y)

 x2 - as.character(date())
 x2_2 - strptime(x2, %a %b %d %H:%M:%S %Y)

 X-c(x1_2,x2_2)

 order(X)  ## I want to get the permutation other than the sorted vector.
 ## order(X) works in windows but not Linux.

 any alternative way to the the permutation?

 --
 HUANG Ronggui, Wincent
 Tel: (00852) 3442 3832
 PhD Candidate, City University of Hong Kong
 Website: http://ronggui.huang.googlepages.com/
 RQDA project: http://rqda.r-forge.r-project.org/




-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
Website: http://ronggui.huang.googlepages.com/
RQDA project: http://rqda.r-forge.r-project.org/

__
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[R] about body-

2008-11-30 Thread ronggui
In  body(fun, envir = environment(fun)) - value,  value can be an
expression or a list of R expressions.

But it seems that value must be length-1 list (if it is a list), is it right?
 f2 - function(x) {}
 body(f2) - list(quote(x- x^5),quote(return(y)))
Error in as.function.default(c(formals(fun), value), envir) :
  invalid formal argument list for function


I want to construct a function by computing, what I do at this moment
is as follows:

 f - function(x) {}
 body(f)[[2]] - quote(x- x^5)
 body(f)[[3]] - quote(return(y))

Is there a better way to do this?

Thanks

-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
PhD Candidate, City University of Hong Kong
http://ronggui.huang.googlepages.com/

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[R] [R-pkgs] RQDA-0.1.5 is released

2008-11-23 Thread ronggui
RDQA is a package for Qualitative Data Analysis built upon R. It works
both on the Windows and Linux/FreeBSD platforms. RQDA is an
easy-to-use tool to assist in the analysis of textual data. At the
present, it supports only plain text format data. All the information
is stored in SQLite database via the R package of RSQLite. The GUI is
based on RGtk2, via the aid of gWidgetsRGtk2. It includes a number of
standard Computer-Aided Qualitative Data Analysis features. Besides,
it seamlessly integrated with R, which means that a) statistical
analysis on the coding is possible, and b) functions about data
manipulation and analysis can be easily extended by writing R
functions. To some extent, RQDA and R makes an integrated platform for
both quantitative and qualitative data analysis.

The current version should be regarded as Release Candidate Version, I
will test it preliminary under Chinese Windows  OS, but it should work
under Linux and FreeBSD.

By the GUI, it can:
# Import documents from plain text
# Support non-English documents, Simplified Chinese Character is
well-tested under Windows
# Character-level coding using codes
# Memos of documents, codes, coding, project, files and more
# Retrieval of coding
# Single-file (*.rqda) format, which is basically SQLite database.
Data are stored in UTF-8, so it should be portable
# Facilitator helps to categorize codes,which is key to theory
building. I deliberately avoid using tree-like categorization
# There is a case category, which is crucial feature to bridge
qualitative and quantative research
# Search information about selected case from the Internet vis popup menu
# Temporary delete files and codes
# Rename the files,code, code category, case and others

More information can be found in http://rqda.r-forge.r-project.org/

Comments and suggestions are welcome:)

-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
Ph.D. Candidate, CityU of HK
Master of sociology, Fudan University, China
Bachelor of Social Work, Fudan University, China
Personal homepage: http://ronggui.huang.googlepages.com/

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Re: [R] Citing R in journal articles (or the failure to)

2008-11-12 Thread ronggui
 In two recent in press articles where I cited R packages,
 I was asked by the copy-editor to add a location or url to the references.
  Could I suggest that citation() be modified to include
 the URL automatically?

I second this suggestion. I experienced similar case once as well.


 --
 Michael Friendly Email: friendly AT yorku DOT ca
 Professor, Psychology Dept.
 York University  Voice: 416 736-5115 x66249 Fax: 416 736-5814
 4700 Keele Streethttp://www.math.yorku.ca/SCS/friendly.html
 Toronto, ONT  M3J 1P3 CANADA

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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
Ph.D. Candidate, CityU of HK
Master of sociology, Fudan University, China
Bachelor of Social Work, Fudan University, China
Personal homepage: http://ronggui.huang.googlepages.com/

__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Returning a vector from by

2008-11-03 Thread ronggui
If you just want that result, you can try tapply instead of by.

 tapply(res$Score,res$ID,max)
a b
2 1

On Mon, Nov 3, 2008 at 7:31 PM, Daniel Brewer [EMAIL PROTECTED] wrote:
 Hello,

 I am trying to return a vector from a simply by but I cannot get it
 working, even using simplify=TRUE.

 res - data.frame(ID=c(a,a,a,b,b),Score=c(0,1,2,0,1))
 yoda - by(res$Score,res$ID,max,simplify=T)
 class(yoda)
 [1] by

 I would like it to return a vector with the names as the ID column.  The
 only way I could work out how to do this was

 result - as.vector(yoda)
 names(result) - names(yoda)
 result
 a b
 2 1

 Is there a better way?

 Thanks

 Dan

 --
 **
 Daniel Brewer, Ph.D.

 Institute of Cancer Research
 Molecular Carcinogenesis
 Email: [EMAIL PROTECTED]
 **

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company 
 Limited by Guarantee, Registered in England under Company No. 534147 with its 
 Registered Office at 123 Old Brompton Road, London SW7 3RP.

 This e-mail message is confidential and for use by the...{{dropped:19}}

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Re: [R] how to count unique observations by variables

2008-10-16 Thread ronggui
How about this:

 df1=data.frame(v1=c(1,1,2,3,2,4,1))
 df1$v2 - ave(df1$v1,df1$v1,FUN=length)
 df1
  v1 v2
1  1  3
2  1  3
3  2  2
4  3  1
5  2  2
6  4  1
7  1  3


On Thu, Oct 16, 2008 at 1:27 PM, Lijiang Guo [EMAIL PROTECTED] wrote:
 Dear R-helpers,

 I have a data frame with 3 variables, each record is a unique combination of
 the three variables. I would like to count the number of unique values of v3
 in each v1, and save it as a new variable v4 in the same data frame.
 e.g.
 df1
 [v1] [v2] [v3]
 [1,] a  C  1
 [2,] b  C  2
 [3,] c  B  3
 [4,] a  B  3
 [5,] b  A  2
 [6,] c  A  1

 In this case, the 4th column would become (2, 1, 2, 2, 1, 2).

 Could someone tell me how to do this?

 regards,
 Lijiang


 --

[[alternative HTML version deleted]]

 __
 R-help@r-project.org mailing list
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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
Ph.D. Candidate, CityU of HK
Master of sociology, Fudan University, China
Bachelor of Social Work, Fudan University, China
Personal homepage: http://ronggui.huang.googlepages.com/

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] IIA test on multinomial logit

2008-10-14 Thread ronggui
Hi, you should look at hmftest in mlogit package. However, be cautious
when you use IIA test, it is not very reliable as Long and Freese
(2006:243) have shown.

* J. Scott Long and Jeremy Freese. 2006. Regression Models for
Categorical Outcomes Using Stata. 2nd.

On Wed, Oct 15, 2008 at 3:37 AM, Erika Known [EMAIL PROTECTED] wrote:
 - Original Message -
 From: Erika Known [EMAIL PROTECTED]
 To: r-help@r-project.org
 Sent: Tuesday, October 14, 2008 11:43 AM
 Subject: [R] IAA test on my multinomial logit

  Hi all
 
  I'm trying to immigrate from Stata and I want to preform a IIA test
  (Independence of Irrelevant Alternatives) on my multinomial logit model
  in R, but I can't seem to find a package that dos the trick. I've been
  looking at
 
 http://bm2.genes.nig.ac.jp/RGM2/R_current/library/systemfit/man/hausman.systemfit.html
  but I can't figure out what to do! I normally just type 'mlogtest,
  hausman base' to get the test in Stata. I can even use 'mlogtest,
  smhsiao base' to get the Small-Hsiao tests of IIA assumption.
 
  according to the literature there is also other tests.. thou I cant seem
  to find any off them in R.
 
  Thank for the help.
 
  Erika

 On Tue, 14 Oct 2008 12:11:45 -0500, Gilbert Brenes wrote
 If I'm not wrong, the test for IIA is the Hausman test.

 Look for hausman.systemfit in the systemfit package.

 Gilbert

 Hi again!

 Thanks for your answer! Thou that's where I got stuck too, so to say.
 The link I send was to the
 systemfit package, but I can't seem to get it to working.

 This is what I do:

 model_01 - multinom(Y ~ X1 + X2 + X3 + X4 + X5 + X6, data=data,
 contrasts = NULL, Hess = TRUE, summ = 0, censored = FALSE, model = TRUE)

 That's running like a dream! - and the I try:

 systemfit(model_01)
 Error in systemfit(dyls.model01) :
  argument 'formula' must be an object of class 'formula' or a list of
 objects of class 'formula'
 In addition: Warning messages:
 1: In if (class(formula) == formula) { :
  the condition has length  1 and only the first element will be used
 2: In if (class(formula) == list) { :
  the condition has length  1 and only the first element will be used

hausman.systemfit(model_01)
 Error in coef(results3sls) :
  argument results3sls is missing, with no default

 I relly want to imigrate, but I need help! Just tell mer a website or
 wher I can read my way out of it.

 Do you think you can give me one more hint?

 Sorry for my ignorance

 Erika

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 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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-- 
HUANG Ronggui, Wincent
Tel: (00852) 3442 3832
Ph.D. Candidate, CityU of HK
Master of sociology, Fudan University, China
Bachelor of Social Work, Fudan University, China
Personal homepage: http://ronggui.huang.googlepages.com/

__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Re: [R] Problem of installing Matrix

2008-06-07 Thread ronggui
Yes, I knew I have to use gmake instead of the BSD one. So, I have set
the export MAKE=gmake before the installation process. Your reply
reminder me of the possibility that I have failed to install some
other related components. After install the GUN version of automake,
the problem is solved. Thanks for your reply again.

On Sat, Jun 7, 2008 at 1:00 PM, Prof Brian Ripley [EMAIL PROTECTED] wrote:
 From the DESCRIPTION for Matrix:

 SystemRequirements:   GNU make

 Presumably you have a BSD make on your FreeBSD system.  This has come up
 before, and FreeBSD users have succeeded with GNU make.


 On Sat, 7 Jun 2008, ronggui wrote:

 [EMAIL PROTECTED] MAKE=gmake
 [EMAIL PROTECTED] R
 .

 install.packages(Matrix)

 --- Please select a CRAN mirror for use in this session ---
 Loading Tcl/Tk interface ... done
 trying URL 'http://bibs.snu.ac.kr/R/src/contrib/Matrix_0.999375-9.tar.gz'
 Content type 'application/x-gzip' length 1483674 bytes (1.4 Mb)
 opened URL
 ==
 downloaded 1.4 Mb

 /usr/local/lib/R/library
 * Installing *source* package 'Matrix' ...
 ** libs
 ** arch -
 Makefile, line 8: Need an operator
 Makefile, line 13: Need an operator
 Makefile, line 16: Need an operator
 Makefile, line 27: Need an operator
 Makefile, line 29: Need an operator
 Makefile, line 31: Need an operator
 make: fatal errors encountered -- cannot continue
 ERROR: compilation failed for package 'Matrix'
 ** Removing '/usr/local/lib/R/library/Matrix'

 The downloaded packages are in
/tmp/Rtmpq3enyj/downloaded_packages
 Updating HTML index of packages in '.Library'
 Warning message:
 In install.packages(Matrix) :
  installation of package 'Matrix' had non-zero exit status


 sessionInfo()

 R version 2.6.1 (2007-11-26)
 i386-portbld-freebsd7.0

 locale:
 zh_CN.eucCN/zh_CN.eucCN/C/C/C/C

 attached base packages:
 [1] stats graphics  grDevices utils datasets  methods   base

 loaded via a namespace (and not attached):
 [1] rcompgen_0.1-17 tcltk_2.6.1 tools_2.6.1

 R.version

  _
 platform   i386-portbld-freebsd7.0
 arch   i386
 os freebsd7.0
 system i386, freebsd7.0
 status
 major  2
 minor  6.1
 year   2007
 month  11
 day26
 svn rev43537
 language   R
 version.string R version 2.6.1 (2007-11-26)

 --
 HUANG Ronggui, Wincent http://ronggui.huang.googlepages.com/
 Bachelor of Social Work, Fudan University, China
 Master of sociology, Fudan University, China
 Ph.D. Candidate, CityU of HK.

 __
 R-help@r-project.org mailing list
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 --
 Brian D. Ripley,  [EMAIL PROTECTED]
 Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
 University of Oxford, Tel:  +44 1865 272861 (self)
 1 South Parks Road, +44 1865 272866 (PA)
 Oxford OX1 3TG, UKFax:  +44 1865 272595




-- 
HUANG Ronggui, Wincent http://ronggui.huang.googlepages.com/
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Candidate, CityU of HK.

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[R] Problem of installing Matrix

2008-06-06 Thread ronggui
[EMAIL PROTECTED] MAKE=gmake
[EMAIL PROTECTED] R
.
 install.packages(Matrix)
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... done
trying URL 'http://bibs.snu.ac.kr/R/src/contrib/Matrix_0.999375-9.tar.gz'
Content type 'application/x-gzip' length 1483674 bytes (1.4 Mb)
opened URL
==
downloaded 1.4 Mb

/usr/local/lib/R/library
* Installing *source* package 'Matrix' ...
** libs
** arch -
Makefile, line 8: Need an operator
Makefile, line 13: Need an operator
Makefile, line 16: Need an operator
Makefile, line 27: Need an operator
Makefile, line 29: Need an operator
Makefile, line 31: Need an operator
make: fatal errors encountered -- cannot continue
ERROR: compilation failed for package 'Matrix'
** Removing '/usr/local/lib/R/library/Matrix'

The downloaded packages are in
/tmp/Rtmpq3enyj/downloaded_packages
Updating HTML index of packages in '.Library'
Warning message:
In install.packages(Matrix) :
  installation of package 'Matrix' had non-zero exit status


 sessionInfo()
R version 2.6.1 (2007-11-26)
i386-portbld-freebsd7.0

locale:
zh_CN.eucCN/zh_CN.eucCN/C/C/C/C

attached base packages:
[1] stats graphics  grDevices utils datasets  methods   base

loaded via a namespace (and not attached):
[1] rcompgen_0.1-17 tcltk_2.6.1 tools_2.6.1

 R.version
   _
platform   i386-portbld-freebsd7.0
arch   i386
os freebsd7.0
system i386, freebsd7.0
status
major  2
minor  6.1
year   2007
month  11
day26
svn rev43537
language   R
version.string R version 2.6.1 (2007-11-26)

-- 
HUANG Ronggui, Wincent http://ronggui.huang.googlepages.com/
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Candidate, CityU of HK.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Insert a recorde into a table using SQL

2008-05-12 Thread ronggui
It works. Thanks very much.

Best

On Mon, May 12, 2008 at 7:02 PM, Gabor Grothendieck
[EMAIL PROTECTED] wrote:
 Create an encoding function which replaces single quotes with
 two single quotes:

 # first string is a single character consisting of single quote
 # second string is two characters consisting of two single quotes
 enc - function(x) gsub(', '', x)
 dbGetQuery(con,sprintf(insert into dd (txt) values ('%s'), enc(dd[2,1])))


 On Mon, May 12, 2008 at 1:54 AM, ronggui [EMAIL PROTECTED] wrote:
 Dear list,

 I want to insert a recorde into a SQLite table by dbGetQuery(), but
 there is a problem when the value contains quotation mark.

  dd-data.frame(txt=c(having both ' and \ in character.,OK))
  library(RSQLite)
 Loading required package: DBI
  con-dbConnect(dbDriver(SQLite),:memory:)
  dbWriteTable(con,dd,dd,over=T)
 [1] TRUE
  dbGetQuery(con,sprintf(insert into dd (txt) values (\%s\),dd[2,1]))
 NULL
  dbGetQuery(con,sprintf(insert into dd (txt) values (\%s\),dd[1,1]))
 Error in sqliteExecStatement(con, statement, bind.data) :
  RS-DBI driver: (error in statement: unrecognized token: ))

 How can I insert a (key, value) pair into a table by dbGetQuery?  Thanks.

 --
 HUANG Ronggui, Wincent
 Bachelor of Social Work, Fudan University, China
 Master of sociology, Fudan University, China
 Ph.D. Candidate, CityU of HK.

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.





-- 
HUANG Ronggui, Wincent
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Candidate, CityU of HK,
http://www.cityu.edu.hk/sa/psa_web2006/students/rdegree/huangronggui.html

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Not to draw the xaxis ticks in ggplot2

2008-05-11 Thread ronggui
Thanks. It is helpful.

Best

On Mon, May 12, 2008 at 4:34 AM, Paul Murrell [EMAIL PROTECTED] wrote:
 Hi


 ronggui wrote:
 Thanks,Hadley.

 Another question is how can I know there is a grob path called
 xaxis::ticks? Is there any easy way to figure out?


 grid.ls()  ?

 Paul


 Thanks in advance.

 On Wed, May 7, 2008 at 10:06 PM, hadley wickham [EMAIL PROTECTED] wrote:
 On Tue, May 6, 2008 at 11:44 PM, ronggui [EMAIL PROTECTED] wrote:
 library(ggplot2)
  (p- qplot(mpg, wt, data=mtcars))
  What I am doing is to set color of the ticks to hide them.
  grid.gedit(gPath(xaxis, ticks), gp=gpar(col=white))

  It should be a better way to achieve the purpose. Thanks.
 Agreed.  I've added it to my ggplot2 customisation to do list.

 Thanks,

 Hadley

 --
 http://had.co.nz/





 --
 Dr Paul Murrell
 Department of Statistics
 The University of Auckland
 Private Bag 92019
 Auckland
 New Zealand
 64 9 3737599 x85392
 [EMAIL PROTECTED]
 http://www.stat.auckland.ac.nz/~paul/




-- 
HUANG Ronggui, Wincent
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Candidate, CityU of HK,
http://www.cityu.edu.hk/sa/psa_web2006/students/rdegree/huangronggui.html

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Insert a recorde into a table using SQL

2008-05-11 Thread ronggui
Dear list,

I want to insert a recorde into a SQLite table by dbGetQuery(), but
there is a problem when the value contains quotation mark.

 dd-data.frame(txt=c(having both ' and \ in character.,OK))
 library(RSQLite)
Loading required package: DBI
 con-dbConnect(dbDriver(SQLite),:memory:)
 dbWriteTable(con,dd,dd,over=T)
[1] TRUE
 dbGetQuery(con,sprintf(insert into dd (txt) values (\%s\),dd[2,1]))
NULL
 dbGetQuery(con,sprintf(insert into dd (txt) values (\%s\),dd[1,1]))
Error in sqliteExecStatement(con, statement, bind.data) :
  RS-DBI driver: (error in statement: unrecognized token: ))

How can I insert a (key, value) pair into a table by dbGetQuery?  Thanks.

-- 
HUANG Ronggui, Wincent
Bachelor of Social Work, Fudan University, China
Master of sociology, Fudan University, China
Ph.D. Candidate, CityU of HK.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Not to draw the xaxis ticks in ggplot2

2008-05-09 Thread ronggui
Thanks,Hadley.

Another question is how can I know there is a grob path called
xaxis::ticks? Is there any easy way to figure out?

Thanks in advance.

On Wed, May 7, 2008 at 10:06 PM, hadley wickham [EMAIL PROTECTED] wrote:
 On Tue, May 6, 2008 at 11:44 PM, ronggui [EMAIL PROTECTED] wrote:
 library(ggplot2)
  (p- qplot(mpg, wt, data=mtcars))
  What I am doing is to set color of the ticks to hide them.
  grid.gedit(gPath(xaxis, ticks), gp=gpar(col=white))

  It should be a better way to achieve the purpose. Thanks.

 Agreed.  I've added it to my ggplot2 customisation to do list.

 Thanks,

 Hadley

 --
 http://had.co.nz/




-- 
HUANG Ronggui, Wincent

Bachelor of Social Work, Fudan University, China

Master of sociology, Fudan University, China

Ph.D. Candidate, CityU of HK,
http://www.cityu.edu.hk/sa/psa_web2006/students/rdegree/huangronggui.html

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] question about subseting a dataframe

2008-05-09 Thread ronggui
Because id is a factor in your data frame, and the levels (including
C) is kept when subsetted. Here is one way to get ride of C.

 ex1$id - factor(ex1$id)
 tapply(ex1$x, ex1$id, mean)
   AB
22.5 32.5


On Sat, May 10, 2008 at 11:23 AM, Dipankar Basu [EMAIL PROTECTED] wrote:
 Hi!

 I am using R version 2.7.0 and am working on a panel dataset read into R as
 a dataframe; I call it ex. The variables in ex are: id  year  x

 id: a character string which identifies the unit
 year: identifies the time period
 x: the variable of interest (which might contain NAs).

 Here is an example:
 id - rep(c(A,B,C),2)
 year - c(rep(1970,3),rep(1980,3))
 x - c(20,30,40,25,35,45)
 ex - data.frame(id=id,year=year,x=x)
 ex
  id year  x
 1  A 1970 20
 2  B 1970 30
 3  C 1970 40
 4  A 1980 25
 5  B 1980 35
 6  C 1980 45

 I want to draw a subset of ex by selecting only the A and B units:

 ex1 - subset(ex[which(ex$id==A|ex$id==B),])

 Now I want to do some computations on x for each selected unit only:

 tapply(ex1$x, ex1$id, mean)
  ABC
 22.5 32.5   NA

 But this gives me an NA value for the unit C, which I thought I had already
 left out. How do I ensure that the computation (in the last step) is limited
 to only the units I have selected in the first step?

 Dipankar

[[alternative HTML version deleted]]

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.




-- 
HUANG Ronggui, Wincent

Bachelor of Social Work, Fudan University, China

Master of sociology, Fudan University, China

Ph.D. Candidate, CityU of HK,
http://www.cityu.edu.hk/sa/psa_web2006/students/rdegree/huangronggui.html

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


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