Dear RUsers,
I guess this is an easy question for someone a little familiar with
programming...(which I am not)...
I've got 2 colummns, one shows just dates(SST_date, Class 'Date' num), the
other one shows the SeaSurfaceTemperature (SST, num) at that certain date.
SST_dateSST
2008-01-01
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of
lauramorg...@bluewin.ch
Sent: Thursday, February 19, 2009 11:57 PM
To: r-help@r-project.org
Subject: [R] write.table
Hello,
I tried to turn lists into vectors and then bind
Hi Laura,
You need to specify where you want to write your table. Like this...
write.table(result, file=C:/Documents and
Settings/simonp/Desktop/result.csv, sep = ,,row.names = F)
If you have to do this alot I think you can set your working drive up to
always write table in the same
If, suppose, the name of your dataframe is dataframe , you could try
something like:
mean60days-c()
for(i in 1:length(dataframe$SST))
+ {
+ mean60days[[i]]-mean(dataframe$SST[i-10:i])
+ }
I'm not really sure it will work... my skills aren't that great...
Anyway, it worked on a sample I tried it
Dear Prof.
Hello,
Regarding to R Language , I have some problems.could you please help me.I
have Four treatments in randomized block with 3
replications . I am going to comprise between medium of treatments with
LSD test.is it possible in R. could you please advise me.I am going to
As a followup to my previous question on R and Java interaction, it looks
like there may be some promise to use JRI and JavaGD together.
But, I have been unable to find any documentation or examples anywhere on
how to use JavaGD. Does anyone have any experience on how to use JavaGD? I
am
hi,
There are two types of plotting I miss dearly in Matlab, can anyone
enlighten me how to do similar stuff in R?
- multiple figures with individual windows (not multiple figures in
same window)?
- draw something, hold on the drawing, wait for a key action, then
overlay on top?
Not sure if
On 2/19/09, glaporta glapo...@freeweb.org wrote:
Dear list,
is it possible to change the background color of dotplot's points? I tried
in many ways but unsuccessfully
Thanks in advance
Gianandrea
require(lattice)
dotplot(variety ~ yield | site, data = barley, groups = year, pch=21)
Thank you Deepayan,
for this suggestion
dotplot(variety ~ yield | site, data = barley, groups = year, pch=21, fill =
c(1, 2))
glaporta wrote:
Dear list,
is it possible to change the background color of dotplot's points? I tried
in many ways but unsuccessfully
Thanks in advance
Sorry, I meant:
If, suppose, the name of your dataframe is dataframe , you could try
something like:
mean60days-c()
for(i in 1:length(dataframe$SST))
+ {
+ mean60days[[i]]-mean(dataframe$SST[i-60:i])
+ }
I'm not really sure it will work... my skills aren't that great...
Anyway, it worked on a
Sorry, I'm using R 2.8.1 on Microsoft Windows XP professional 2002 Service Pack
2.
The error I get is
Error in write.table(x, file, nrow(x), p, rnames, sep, eol,
na, dec, as.integer(quote), :
'list' type not implemented in 'EncodeElement'
The problem is that I can' t manage to save the
Alina Sheyman wrote:
I have yet another question concerning maps.
This time I want to create a colored map of number of students by state.
Can this be done using palettes in Rcolor brewer, is there some other way?
Hi Alina,
color.scale in the plotrix package linearly converts numbers to a
Gundala Viswanath wrote:
...
How do you do that? Yes I am using that data exactly for the plotting.
Say you have this data frame (I'm too lazy to type in your example):
testdat-cut(rnorm(100,3),breaks=0:6)
get a table:
testtable-table(testdat)
testtable
(0,1] (1,2] (2,3] (3,4] (4,5]
Hi Oliver,
1) thats easy, if you want to display several graphs at once type windows(),
once for each new graph.
2) Not sure exactly what you mean here but you have complete control over
graphs in R. e.g. plot a blank graph then add axex using axis(), add points
using points(), etc. etc.
Hi all
This
topic is very interesting to me as I was planning to do something
similar, but in Spanish. In my opinion with the existing infrastructure
in English, new resources are not necessary. However, local language
support, and, in particular, in Spanish, is rather weak.
I don't
actually
Hi R-masters
I need yours help about a problema in one of may ongoing researchers.
In my research the subjects (20 in total) answer 60 questions (20 type
G, 20 type S and 20 type P).
Which questions is classified about 3 factor (2 level each) and the
subject score with 2 scale (not integer
Hi
I have a data set with two variables q and depth as follows:
q-c(tapply(weight[Soil==Jy], Depth[Soil==Jy], mean)). This commns
returns 7 q values:
0.68790 0.84555 0.405416667 0.15277 0.03310 0.03140
0.00518
The depth values are produced using this command whish depth
alis villiyam wrote:
Dear Prof.
Hello,
Regarding to R Language , I have some problems.could you please help me.I
have Four treatments in randomized block with 3
replications . I am going to comprise between medium of treatments with
LSD test.is it possible in R. could you please advise
Hi,
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the type of plot I have but then I want to add a
reference line to 1995 on each of the panels. I have tried panel.abline and
other suggestions on the forum but can't get it to work.
Hi R-masters
Sorry but i make a error in script the correct code to fake database of
research
Subj-rep(1:20,each=60)
Sti-rep(c(G,S,P),40)
SP-rep(c(S,P),each=60)
AG-rep(c(A,P),60)
Mer-rep(c(M,NM,M,NM),each=30)
Car-round(runif(120,1,7),0)
Val-round(runif(120,-7,7),0)
Another approach using latticeExtra, more ggplot2-like:
p - xyplot(matter~year|plot,type=l)
p +
latticeExtra::layer(panel.abline(v=1995))
On 20 Feb 2009, at 09:34, Chris Bennett wrote:
Hi,
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the type
Hi Saeed,
one approach is to try out several initial value combinations for a and b.
It often helps to find initial values of the same order of magnitude and of the
same sign
as the final estimates.
To get such initial values, you could linearize the model:
lm(log(q) ~ I(-depth))
and supply
Hi, try this:
p - xyplot(matter~year|plot,type=l)
update(p, panel=function(...){
panel.xyplot(...)
panel.abline(v=1995)
} )
On 20 Feb 2009, at 09:34, Chris Bennett wrote:
Hi,
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the
On Fri, Feb 20, 2009 at 01:34:02AM -0800, Chris Bennett wrote:
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the type of plot I have but then I want to add a
reference line to 1995 on each of the panels. I have tried panel.abline and
other
well, it kind of works
now, I get means from the 61st SST-value on (which is reasonable, so no
carful discarding of the first 60 values) but aswell I only get means
until the 186st SST-value (although I 've got about 4900 in total). Allt
the rest is NA - besides the 60th value is NaN
Any idea,
Dear R users,
I have trouble obtaining the same results for nested Anova with two fixed
factors when using lm and aov functions.
The formulas are:
e1=aov(y~x/z)
e2=lm(y~x/z)
summary(e1)
Df Sum Sq Mean Sq F valuePr(F)
x 47 260.0 5.5 18.0088
Using the zoo package:
Lines - SST_dateSST
2008-01-01 22.2
2008-01-02 21.8
2008-01-03 22.8
2008-01-04 22.9
2008-01-05 23.1
2008-01-06 23.2
library(zoo)
# z - read.zoo(myfile.dat, header = TRUE)
z - read.zoo(textConnection(Lines), header = TRUE)
merge(z, avg3 = rollmean(z, 3, align = right))
On Fri, 20 Feb 2009, lauramorg...@bluewin.ch wrote:
Sorry, I'm using R 2.8.1 on Microsoft Windows XP professional 2002 Service Pack
2.
The error I get is
Error in write.table(x, file, nrow(x), p, rnames, sep, eol,
na, dec, as.integer(quote), :
'list' type not implemented in
Hello
I have one DF (detheleny1periode), with some variables that mathes, in some
way, variables in another DF (y2).
The DF named detheleny1periode look like this (i have not included alle
variables):
CHR_NR diffdatoperiode
1137729
1137759
11377
Decyphering formulas seems to be the most time consuming part of lm:
mylm1 - function(formula, data) {
# not perfect but works
F - model.frame(formula,data)
y - model.response(F)
mt - attr(F, terms)
x - model.matrix(mt,F)
coefs - solve(crossprod(x), crossprod(x,y))
Thank you for your advice, but I didn't manage to make it work...
I tried
carichi.annui -
data.frame(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loadSiO2)
And I got this error message:
Error in data.frame(anno, loadPTG, loadPO4, loadNT, loadNH4, loadNO3, :
the arguments have a
Note that using solve can be numerically unstable for certain problems.
On Fri, Feb 20, 2009 at 6:50 AM, Kenn Konstabel lebats...@gmail.com wrote:
Decyphering formulas seems to be the most time consuming part of lm:
mylm1 - function(formula, data) {
# not perfect but works
F -
Dear all,
I have a problem in calling my C code from R. If I do not need to use
#includeR.h, the codes work properly. But when I need to use it, my
codes produce an error as:
logpostCLM.cpp:7:15: error: R.h: No such file or directory
logpostCLM.cpp:8:24: error: Rinternals.h: No such file or
Dear all, I would like to hear about the best way between an dynamic web page
an R. (rpad, rapache, rphp son on ???).
I am producing dynamic web pages with PHP and need some data analysis in these
pages.
Best regards.
JL
_
Dear all,
I tried help.search(karber) and RSiteSearch(karber) and
RSiteSearch(*karber*) to find whether the (trimmed) Spearman-Karber method
for LD50 evaluation in toxicity data (e.g. according to Hamilton 1977) has been
implemented in R. Or does this method feature under a different name?
Hello,
I have a poblem with the Rpad server version. I've created a
three-step-calculation with Rpad. It consists of three .Rpad pages
linked to each other. It works perfect on he local version, because on
every page Rpad is communicating with the same R process. So all the
variables are
At 10:18 20/02/2009, mau...@alice.it wrote:
Your email has gone to hundreds of people all over the world many of
whom read their mail over quite slow connections especially in less
developed countries. Sending all of them half a megabyte of unwanted
mail is not very polite.
[mail content
Have just added an example 12 on the home page:
http://sqldf.googlecode.com
that shows an example. Note use of notation
main.mytable to refer to an existing table in the
main database (as opposed to a data frame in R).
On Thu, Feb 19, 2009 at 11:55 PM, Stephen Tucker brown_...@yahoo.com wrote:
C.H. wrote:
Dear experts,
I would like to know how to plot the log-minus-log plot for survival
analysis (to check the proportional assumption) in R.
Using the AML example.
fit - survfit(Surv(time, status) ~ x, data=aml)
length(fit$surv) #20
as the length of fit$surv is shorter than aml$x and
If you can tolerate the subdiagonal and superdiagonal zero elements
being populated, then perhaps this is useful. If there is a subset
function as you suggest, then perhaps further reduction would be
feasible from this as a starting point. At least it would reduce the
size from 10^5 x 10^5
Hi
r-help-boun...@r-project.org napsal dne 20.02.2009 10:34:02:
Hi,
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the type of plot I have but then I want to
add a
reference line to 1995 on each of the panels. I have tried panel.abline
and
On 2/20/2009 7:07 AM, Cetinyürek Aysun wrote:
Dear all,
I have a problem in calling my C code from R. If I do not need to use
#includeR.h, the codes work properly. But when I need to use it, my
codes produce an error as:
logpostCLM.cpp:7:15: error: R.h: No such file or directory
May you put your code and data in the internet?
It will be easy for others to find your real problem.
- Original Message -
From: lauramorg...@bluewin.ch
To: r-help@r-project.org
Sent: Friday, February 20, 2009 7:54 PM
Subject: Re: [R] write.table
Thank you for your advice, but I didn't
Here is one way of doing it. It does not check for errors in the case
that there are not enough values in the first dataframe:
x1 - read.table(textConnection(CHR_NR diffdatoperiode
+ 1137729
+ 1137759
+ 1137778), header=TRUE)
x2 -
On Fri, 20 Feb 2009, David Winsemius wrote:
If you can tolerate the subdiagonal and superdiagonal zero elements being
populated, then perhaps this is useful. If there is a subset function as you
suggest, then perhaps further reduction would be feasible from this as a
starting point. At least
Hi
r-help-boun...@r-project.org napsal dne 20.02.2009 11:21:26:
Hi
I have a data set with two variables q and depth as follows:
q-c(tapply(weight[Soil==Jy], Depth[Soil==Jy], mean)). This commns
returns 7 q values:
0.68790 0.84555 0.405416667 0.15277 0.03310 0.03140
Hi
r-help-boun...@r-project.org napsal dne 20.02.2009 12:54:41:
Thank you for your advice, but I didn't manage to make it work...
I tried
carichi.annui - data.frame
(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loadSiO2)
And I got this error message:
Error in
Hi
r-help-boun...@r-project.org napsal dne 20.02.2009 02:22:35:
I have to admit I don't fully understand how MatLab's step() function
works, but I'm learning that part. Can someone point me to
equivalentrelated functions in R?
Maybe ?step. Howewer without knowing what Matlab's step
Hello,
I do not know any such community of R users in Spain and Latin America
but it sounds like a great idea.
A number of R official documents have already been translated into
Spanish, but enhancing local language support on basic documentation
would facilitate adoption of the language by
on 02/20/2009 07:23 AM Frank E Harrell Jr wrote:
C.H. wrote:
Dear experts,
I would like to know how to plot the log-minus-log plot for survival
analysis (to check the proportional assumption) in R.
Using the AML example.
fit - survfit(Surv(time, status) ~ x, data=aml)
length(fit$surv)
Thanks for this, Frank. Quick comment (decided to put on list rather
than just send to you directly, hope that's OK). Under mixed models, you
might consider creating two smaller columns, one for the fixed effects
and another for the random effects. Under the random effects, you might
consider
I also plan to create a R website in Taiwan (locale: Traditional Chinese).
My reason is the same as you.
Welcome people in taiwan to give me suggestion.
- Original Message -
From: UsuarioR España kurtney...@hotmail.com
To: waclaw.marcin.kusnierc...@idi.ntnu.no; landronim...@gmail.com
Thank you!!!
unlist() worked perfectly!!!
Have a nice weekend
Laura
Messaggio originale
Da: petr.pi...@precheza.cz
Data: 20.02.2009 14.58
A: lauramorg...@bluewin.ch
Copia: r-help@r-project.org
Oggetto: Re: [R] write.table
Hi
r-help-boun...@r-project.org napsal dne 20.02.2009 12:54:41:
Then? :
xxx - data.frame(x1 =rnorm(5), offd= c(1:4,0) )
M -Matrix(0,5,5)
rrr - dim(M)[1]
for (rr in 1:rrr){ M[rr,rr] - xxx$x1[rr] }
for (rr in 1:(rrr-1)){ M[rr+1,rr] - xxx$offd[rr] ; M[rr,rr+1] - xxx
$offd[rr]}
M
5 x 5 sparse Matrix of class dgCMatrix
[1,] -1.494930 1.000 . .
TL == Thomas Lumley tlum...@u.washington.edu
on Fri, 20 Feb 2009 05:49:10 -0800 (PST) writes:
TL On Fri, 20 Feb 2009, David Winsemius wrote:
If you can tolerate the subdiagonal and superdiagonal zero elements
being
populated, then perhaps this is useful. If there is a subset
Here's how I do this:
The last lines of my .First() function are these:
## Run command line program if there is one
if(length(.cmd - commandArgs(trailingOnly = TRUE)) 0)
try(source(textConnection(.cmd), echo = T, prompt.echo = ))
and on my Linux path I have this csh script, called runR
#!
In an Rweave tutorial written for possibly naive R users, I felt it
necessary to explain why
table() had to be used inside with(), whereas other tools like xtabs()
had a data= argument.
with() is quite nice for such cases, but it seems an unnecessary thing
to learn right off.
Before I turn
on 02/20/2009 09:11 AM Michael Friendly wrote:
In an Rweave tutorial written for possibly naive R users, I felt it
necessary to explain why
table() had to be used inside with(), whereas other tools like xtabs()
had a data= argument.
with() is quite nice for such cases, but it seems an
Fedora 10
R 2.8.1
I hope someone can tell me the meaning of error I received trying to install
RODBC and how I can get around the problem.
n.b. The error originally occurred then I was installing Rcmdr. I then tried to
install RODBC separately and received the same error.
checking sql.h
On Fri, 20 Feb 2009, Michael Friendly wrote:
In an Rweave tutorial written for possibly naive R users, I felt it necessary
to explain why table() had to be used inside with(), whereas other tools
like xtabs() had a data= argument.
I think the simple rule is: If there is a formula, there is
on 02/20/2009 09:27 AM John Sorkin wrote:
Fedora 10
R 2.8.1
I hope someone can tell me the meaning of error I received trying to install
RODBC and how I can get around the problem.
n.b. The error originally occurred then I was installing Rcmdr. I then tried
to install RODBC separately
You need unixODBC or iodbc. Specifically on F10
gannet% rpm -q --whatprovides /usr/include/sql.h
unixODBC-devel-2.2.12-9.fc10.x86_64
This is in the RODBC/README (well, not the exact RPM for F10).
On Fri, 20 Feb 2009, John Sorkin wrote:
Fedora 10
R 2.8.1
I hope someone can tell me the
I met today a computer crash and our maintenance officer had to reinstall
some components of the OS (MS Windows XP Pro) as well as the Internet
browser (among other things). Now, I cannot install packages from a distant
repository:
utils:::menuInstallPkgs()
Error in .readRDS(pfile) : unknown
Hi all!
I'm new to R and don't know many about it. Because it is free, I managed to
learn it a little bit.
Here is my problem: I did a cluster analysis on 30 observations and 16
variables (monde, figaro, liberation, etc.). Here is the .txt data file:
I have data on a regular grid in the format: x y z data. I would like to
be able to plot them in 3d kind of like a volume or a mesh with colors. Is
that possible in R and how?
Thanks
[[alternative HTML version deleted]]
__
Marc Schwarz's solution solved my problem.
Thank you Marc!
John
John David Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
On 2/20/2009 10:50 AM, kapo coulibaly wrote:
I have data on a regular grid in the format: x y z data. I would like to
be able to plot them in 3d kind of like a volume or a mesh with colors. Is
that possible in R and how?
There are lots of ways, depending on what you want the plot to look
You can try rgl package.
It utilizes OpenGL library.
Or, check the CRAN to find other gtk based package
- Original Message -
From: kapo coulibaly kmcou...@gmail.com
To: r-help@r-project.org
Sent: Friday, February 20, 2009 11:50 PM
Subject: [R] 3D or 4D plot
I have data on a regular
Dear Professor Leisch + R helpers,
For the past few days I have been trying to figure out why the LaTeX
endfloat package is not working with Sweave. I figured it out, and
it's trivial: The endfloat package requires that \begin{table} and
\end{table} commands are on their own line. But Sweave is
Hi,
I was wondering whether there was an easy way to change the attributes
of all elements in a data.frame (rather than looping through elements)?
Specifically, I would like to set the dim attributes to NULL
Thanks for any help,
Jarrod
--
The University of Edinburgh is a charitable
jgaspard wrote:
Hi all!
I'm new to R and don't know many about it. Because it is free, I managed to
learn it a little bit.
Here is my problem: I did a cluster analysis on 30 observations and 16
variables (monde, figaro, liberation, etc.). Here is the .txt data file:
On 2/20/2009 11:08 AM, Ista Zahn wrote:
Dear Professor Leisch + R helpers,
For the past few days I have been trying to figure out why the LaTeX
endfloat package is not working with Sweave. I figured it out, and
it's trivial: The endfloat package requires that \begin{table} and
\end{table}
Right, thanks. I feel a bit sheepish about asking the question now.
I'm using the latex function in the Hmisc package to generate the
tables, which is why it wasn't obvious to me that I just needed to
insert the new line myself.
Thanks,
Ista
On Fri, Feb 20, 2009 at 11:24 AM, Duncan Murdoch
I take the liberty of pasting the on-line documentation for package wavelets,
functions dwt and wt.filter, pertinent to the wavelet/filter choice.
While I apologize for my verbose messages with huge attachments, I encourage
whoever loads packages to CRAN to take some minutes to reread the
My dear R-helpers:
I am a novice in R and have the following text string manipulation question.
Is there a function that performs the job described below?
Say,
wanted_output - c(ab, cd, ef)
#the function_wanted can generate c(ab, cd, ef) using ab cd ef as the
single input argument
wanted_output
On Fri, Feb 20, 2009 at 04:12:53PM +, Jarrod Hadfield wrote:
I was wondering whether there was an easy way to change the attributes
of all elements in a data.frame (rather than looping through elements)?
Specifically, I would like to set the dim attributes to NULL
Maybe I just don't
Dear all,
I got a code for e1071 package in R for SVM regression. I
have used *m$coefs* for extracting the coefficients but I am getting only
72 . How can I extract coefficients of the predictors set? Does it mean
that I will get only 72 as *Number of Support Vectors: 72. *
Hi,
something like this perhaps,
create_string - function(.s){
result - read.table(textConnection(.s))
sapply(result, as.character)
}
(test - create_string(ab cd ef))
hope this helps
baptiste
On 20 Feb 2009, at 16:38, Sean Zhang wrote:
My dear R-helpers:
I am a novice in
Hi,
How do you set up the graphics window so that when clicked by the mouse; it
cycles through your different plots?
ie, run a function with multiple graphs in it: one graphics window pops up
and clicking it goes to the next graph.
I have seen this done before but cannot remember how to
On Fri, 20 Feb 2009, Philipp Pagel wrote:
On Fri, Feb 20, 2009 at 04:12:53PM +, Jarrod Hadfield wrote:
I was wondering whether there was an easy way to change the attributes
of all elements in a data.frame (rather than looping through elements)?
Specifically, I would like to set the dim
Hi Sergii,
I have trouble obtaining the same results for nested Anova with two fixed
factors when using
lm and aov functions.
There is no difference between the two if you treat them equally, i.e. if
you summarize them in the same way.
## Try:
anova(e2)
summary(e1)
## Or:
summary.lm(e1)
par(ask=TRUE)
Uwe Ligges
Will Stone wrote:
Hi,
How do you set up the graphics window so that when clicked by the mouse; it
cycles through your different plots?
ie, run a function with multiple graphs in it: one graphics window pops up
and clicking it goes to the next graph.
I have seen this
Still searching what's going on In fact, I can download manually any
package and install it. The problem occurs when updating the html files. I
can reproduce it with this:
link.html.help()
Error in .readRDS(pfile) : unknown input format
traceback()
5: .readRDS(pfile)
4:
Dear R-users,
I would have a question regarding the multiplication between a
matrix (A, mXn) and a block-diagonal matrix, B, (m*n)X(m*n).
The easy solution would be to, first, vectorize A and use simple matrix
multiplication, but my aim is to avoid such vectorization. Is it
possible?
Imagine the following data of noises that people make, and you want to know
who makes the noise blub.
data=data.frame(rbind(c(blah, boo, blub),c(blabber, baeh,
blib),c(quack, cheer, blub)))
names(data)=c(noises)
data
searchTerm=blub
#The first gives a list of all noises that people make
#who
Ideally I would want it to look like a rubik cube with each little cube
color coded based on the fourth column (data column). Your suggestion might
work if I could color code based on data in the fourth column.
Thanks
On Fri, Feb 20, 2009 at 10:56 AM, Duncan Murdoch murd...@stats.uwo.cawrote:
On 2/20/2009 1:46 PM, kapo coulibaly wrote:
Ideally I would want it to look like a rubik cube with each little cube
color coded based on the fourth column (data column). Your suggestion might
work if I could color code based on data in the fourth column.
Thanks
There's no primitive cube symbol
Hi there,
I am trying to measure orthogonal/perpendicular distances from regression
lines (i.e. the shortest distance from a given point to my regression line).
As it sounds rather easy (basically just an orthogonal/perpendicular
residual) I hoped that there was some function in R that can do
Hi,
Storer and Crowley (JASA 1985) presented an approach for approximating the
changes in maximum partial-likelihood parameter estimates for the Cox model
when a single observation is deleted. Is there an R implementation of this
approach?
Any help is greatly appreciated. Thanks.
Best,
Hi,
I have a large data set in binary code, no covariates. Say, positions along a
genomic sequence where reference sequence is represented by 0 and changes
represented by 1. I have 99 positions and 2000 sequences to analyze. I want to
run a univariate analysis to isolate positions where
Hi all,
I am using the function COV.WT to estimate the estimators (location and
scale) of a bivariate cauchy distribution.
My doubt is about the option WT (weight), cause at the R-help shows that the
weight is uniform according to the number of observations. But, checking the
theory, for example,
For the bivariate case:
g - function(b,x,y)
(abs(y - b[1] - b[2] * x))/sqrt(1 + crossprod(b))
url:www.econ.uiuc.edu/~rogerRoger Koenker
emailrkoen...@uiuc.eduDepartment of Economics
vox: 217-333-4558University of Illinois
fax:
On 2/20/2009 1:55 PM, Duncan Murdoch wrote:
On 2/20/2009 1:46 PM, kapo coulibaly wrote:
Ideally I would want it to look like a rubik cube with each little cube
color coded based on the fourth column (data column). Your suggestion might
work if I could color code based on data in the fourth
Dear list,
I am sorry for asking you this, but I am trying to do again what I
thought I have done before, although this time it does not work.
So, given the data set:
testdf - data.frame(grfak=sample(c(One,Two),size=100,replace=TRUE),
panfak= sample(c(Yes,No),size=100,replace=TRUE), xfak=
Rolf Turner wrote:
On 21/02/2009, at 12:54 AM, lauramorg...@bluewin.ch wrote:
Thank you for your advice, but I didn't manage to make it work...
I tried
carichi.annui -
data.frame(anno,loadPTG,loadPO4,loadNT,loadNH4,loadNO3,loadBOD5,loadSiO2)
And I got this error message:
Error in
Dear Tal,
I didn't have time to look at all this yesterday.
Since aov() doesn't do what I typically want to do, I guess I've not paid
much attention to it recently. I can see, however, that you appear to have
specified the error strata incorrectly, since (given your desire to compare
to Anova)
John Fox wrote:
Dear Tal,
I didn't have time to look at all this yesterday.
Since aov() doesn't do what I typically want to do, I guess I've not paid
much attention to it recently. I can see, however, that you appear to have
specified the error strata incorrectly, since (given your desire to
Hello John, thanks for your reply and correction.
I apologies for my crude mistake in applying the aov (now I have
learned better). I hope to get a hold of Statistical Models in S,
but I don't predict it could easily happen in the near future.
Also, I would be very happy if you could supply me
Hello
I have a matrix of size rows x cols.
I also have a vector of size rows.
The vector contains index values that corresponds to rows in the matrix.
I would like to re-arrange/sort the contents of the matrix according
to the entries in the vector. Can this be done efficiently in R and
If I assign a variable in a function, as in:
test=function(){
assign(a,c(1,2,3),env=.GlobalEnv)
}
How can I do the equivalent of:
names(a)=c(one,two,three)
within the function?
Merely adding the call to names does not work within the function as
it only affects a local variable:
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