Hi Paul,
Hope this is what you're looking for:
## reading in text (the first 13 rows of cc from your posting)
## and using smaller indices [(3,8) instead of (10,40)]
## for this example
cc - mode-(do.call(rbind,
+strsplit(readLines(textConnection(txt))[-1],[ ]{2,}))[,-1],
+
SH == Scott Hyde [EMAIL PROTECTED]
on Mon, 18 Jun 2007 16:59:00 -1000 (HST) writes:
SH Martin, How does Matrix implement augmented matrices? I
SH tried this and got the expected result:
{Replying to R-help, since this question has come up several
times }
V=matrix(1,2,3)
ggplot2
===
ggplot2 is a plotting system for R, based on the grammar of graphics,
which tries to take the good parts of base and lattice graphics and
none of the bad parts. It takes care of many of the fiddly details
that make plotting a hassle (like drawing
I've searched the archives and read the xyplot help but can't figure
out the 2 lattice questions below?
Consider:
library(lattice)
DF - data.frame(x=rnorm(20), y=rnorm(20), g1=rep(letters[1:2], 10),
g2=rep(LETTERS[1:2], each=10),
g3=rep(rep(letters[3:4],each=5),2))
xyplot(y
Hi,
How is it possible to specify all predictors in ridge function?
suppose that I have 100 predictors and I want to apply ridge to all 100
variables. instead of putting the name of all variables separated by , (see
2nd code line below), which notation should I use so that ridge would be
I am working on a data set which has the waiting times taken of jobs running
on a cluster. I need to come up with a method to use this historical data to
come up with a prediction for the future. Even probably try simulating the
full history (as in I have history of the job submission time and
Hi R-help group member,
Please give me idea about Genetic algorithm and Simulated anealing package
in R(Unix). I want to use this for the feature selection in
Chemoinformatics.
Thanking you.
--
Nitish Kumar Mishra
Junior Research Fellow
BIC, IMTECH, Chandigarh, India
E-Mail Address:
[EMAIL
On 6/19/07, Juan Pablo Lewinger [EMAIL PROTECTED] wrote:
I've searched the archives and read the xyplot help but can't figure
out the 2 lattice questions below?
Consider:
library(lattice)
DF - data.frame(x=rnorm(20), y=rnorm(20), g1=rep(letters[1:2], 10),
R-ists
When you move from version to version of R a completely new directory tree is
installed so in principal if you *know* that a package is not updated you can
re-install it from the old tree or copy it to your new tree and install it.
Maybe an 'import packages from previous versions' could
Hi,
I start with an array of booleans:
x - c( TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, FALSE, TRUE );
I want to define an y - f(x) such that:
y - c( 1, 2, 3, 0, 0, 1, 2, 0, 1 );
In other words, do a cumsum when I see a TRUE, but reset to 0 if I see a FALSE.
I know I can do
In survreg() the predictor is log(characteristic life) for Weibull (=
exponential when scale=1) - ie the 63.2%ile. For the others the predictor is
log(median).
This causes problems when comparing predictions and a better way IMHO is to
correct the Weibull prediction by a factor
hello,
are there functions to detecte outlying observations in samples?
thanks.
___
[[alternative HTML version deleted]]
__
On Mon, 18-Jun-2007 at 10:25PM +0100, Ted Harding wrote:
[]
| I'm still wondering, though, why you don't just run the command
| update.packages() as root. You have root access, and you said (in
| the adding user to group context) that only one user is involved
| (presumably yourself?). In
I can confirm problems with the current mysql 5.0.41: I get
library(RMySQL)
Loading required package: DBI
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
'd:/R/library/RMySQL/libs/RMySQL.dll':
LoadLibrary failure: Invalid access to memory
Hi,
Yes, I'm aware that the problem is that I have differing number of
columns in the different datasets. My question still remains. Is there
some way I can allow column numbers to be different, or is there some
other way combining these datasets?
Thanks,
-Jouni
On Mon, 18 Jun 2007, Petr
I am using the following code:
library(lattice)
data-read.csv(data.csv)
attach(data)
fig-xyplot(S_t~month|event,
key= list(text=list(lab=c(Time to first CV
event - Data,
Survival post
first CV event - Model,
Hi
It often depends on your attitude to limits for outlying observations.
Boxplot has some identifying routine for selecting outlying points.
Any procedure usually requires somebody to choose which observation is
outlying and why. You can use e.g. all values which are beyond some
threshold
On Tue, 19 Jun 2007, Junnila, Jouni wrote:
Hi,
Yes, I'm aware that the problem is that I have differing number of
columns in the different datasets. My question still remains. Is there
some way I can allow column numbers to be different, or is there some
other way combining these datasets?
This should do it for you:
x - c( TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, FALSE, TRUE );
y - rle(x)
unlist(lapply(seq(length(y$lengths)), function(.indx){
+ if (y$values[.indx]) seq(y$lengths[.indx])
+ else rep(0, y$lengths[.indx])
+ }))
[1] 1 2 3 0 0 1 2 0 1
On 6/19/07, Feng,
Robin Hankin wrote:
Suppose I have three numbers p1, p2, p3 with
0 = p1,p2,p3 = 1 and p1+p2+p3=1,
and a function f=f(p1,p2,p3) = f(p1,p2,1-p1-p2).
How to draw a contour plot of f() on the p1+p2+p3=1 plane,
that is, an equilateral triangle?
Functions triplot(), triangle.plot(), and
[EMAIL PROTECTED] napsal dne 19.06.2007 12:23:58:
Hi
It often depends on your attitude to limits for outlying observations.
Boxplot has some identifying routine for selecting outlying points.
Any procedure usually requires somebody to choose which observation is
outlying and why. You
You might want to have a look at the outliers package
on CRAN.
--- elyakhlifi mustapha [EMAIL PROTECTED]
wrote:
hello,
are there functions to detecte outlying observations
in samples?
thanks.
xx is 1 in every position of the first run of TRUE, 2 in every
position in the 2nd run of TRUE and so on. The parenthesized
expression in the second line converts those to increasing
values and multiplying it by x zaps the garbage in the positions
that correspond to FALSE in x.
xx -
I haven't find any helpful thread. How can i calculate BIC and
Hosmer-Lemeshow statistic for a logistic regression model. I have used glm
for logistic fit.
--
View this message in context:
http://www.nabble.com/BIC-and-Hosmer-Lemeshow-statistic-for-logistic-regression-tf3945943.html#a11193273
Yuanchang xie xieyc at hotmail.com writes:
Dear Listers,
I want to compare two negative binomial models fitted using glm.nb and
gam(mgcv) based on the same data. What would be the most appropriate
criteria to compare these two models? Can someone point me to some
references? Thank you
spime wrote:
I haven't find any helpful thread. How can i calculate BIC and
Hosmer-Lemeshow statistic for a logistic regression model. I have used glm
for logistic fit.
See the Design package's lrm function and residuals.lrm for a better GOF
test.
--
Frank E Harrell Jr Professor and
I would like to convert the following SAS code for a Random Effects
meta-analysis model for use in R but, I am running into difficulties.
The results are not similar, R should be reporting 0.017 for the
between-study variance component, 0.478 for the estimated parameter and
0.130 for the
Hello you all!
I am a completely new user of R and I have a problem to solve.
I am using Mac OS X on a PowerBook.
I have a table that looks like this:
species X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14
X15 X16 X17 X18 X19 X20 X21
1Anth_cap1 1 0 0 1 0 1 0 0 1
On Tue, 2007-06-19 at 04:59 -0700, spime wrote:
I haven't find any helpful thread. How can i calculate BIC and
Hosmer-Lemeshow statistic for a logistic regression model. I have used glm
for logistic fit.
Not sure about the Hosmer-Lemeshow, but AIC() with argument k = log(n),
where n is
Gabor Grothendieck wrote:
xx is 1 in every position of the first run of TRUE, 2 in every
position in the 2nd run of TRUE and so on. The parenthesized
expression in the second line converts those to increasing
values and multiplying it by x zaps the garbage in the positions
that correspond to
Hi Pablo,
DF - data.frame(x=rnorm(20), y=rnorm(20), g1=rep(letters[1:2], 10),
g2=rep(LETTERS[1:2], each=10),
g3=rep(rep(letters[3:4],each=5),2))
xyplot(y ~ x | g1 + g2, groups=g3, data=DF)
...
I remember findling with this some time ago and getting most of the way
there. If you
On 19 Jun 2007 at 8:13, Lucia Costanzo wrote:
Date sent: Tue, 19 Jun 2007 08:13:30 -0400
From: Lucia Costanzo [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Subject:[R] converting proc mixed to lme for a random
effects
That was going to be my suggestion =)
By the way, lme does not give you the right results because the residual
variance is not constrained to 1 (and it is not possible to do so).
Best,
--
Wolfgang Viechtbauer
Department of Methodology and Statistics
University of Maastricht, The
Dear f_R_iends,
I'm new on parallel programming and trying to use a machine with Windows to
access a linux computer cluster. I could install the 'snow' package, but not
'Rmpi' nor 'rsprng'.
Some tips for intalling such packages for Windows R ?
All the best,
--
Barba
Departamento de Ciências
Eric -
http://www.stats.uwo.ca/faculty/yu/Rmpi/
(the Rmpi package author page) has helpful Windows instructions.
Martin
Eric Ferreira [EMAIL PROTECTED] writes:
Dear f_R_iends,
I'm new on parallel programming and trying to use a machine with Windows to
access a linux computer cluster. I
hi all,
I'm trying for quite some time to have an x- and y-axis, but no entire box.
plot(..,axes=F)
axis(1)
axis(2)
Gives this, but their axes do not go to the origin.
Quite a number of people find this gap between the two axes disturbing.
Has anyone an idea how to let these axes go to the
Gabor Grothendieck wrote:
xx is 1 in every position of the first run of TRUE, 2 in every
position in the 2nd run of TRUE and so on. The parenthesized
expression in the second line converts those to increasing
values and multiplying it by x zaps the garbage in the positions
that correspond to
Is there any windows version of Design package???
Frank E Harrell Jr wrote:
spime wrote:
I haven't find any helpful thread. How can i calculate BIC and
Hosmer-Lemeshow statistic for a logistic regression model. I have used
glm
for logistic fit.
See the Design package's lrm
On Tue, 19 Jun 2007, John Logsdon wrote:
In survreg() the predictor is log(characteristic life) for Weibull (=
exponential when scale=1) - ie the 63.2%ile. For the others the predictor is
log(median).
This causes problems when comparing predictions and a better way IMHO is to
correct the
Sounds more like you would want to explore the use of some sort of Queueing
model. A quick search of R help did not yield any packages that could be
used to develop such models, but I think that modeling simple queuing
systems and estimating wait times is pretty straight forward and could be
On Tue, 2007-06-19 at 15:15 +0200, Talloen, Willem [PRDBE] wrote:
hi all,
I'm trying for quite some time to have an x- and y-axis, but no entire box.
plot(..,axes=F)
axis(1)
axis(2)
Gives this, but their axes do not go to the origin.
Quite a number of people find this gap between the
Hi, i need help building a program for the evaluation of a cash or nothing
option. The option is written on a stock that today has a price of X. Nine
months before i will have this situation:
If aXb the option pays 3 dollars
If Xa or Xb the option pays nothing
The price of the title is
One more variation on the solution, no idea how it compares in speed.
Using your x ...
ifelse(x, unlist(mapply(seq, to = rle(x)$lengths, from = 1)), 0)
[1] 1 2 3 0 0 1 2 0 1
Feng, Ken wrote:
Hi,
I start with an array of booleans:
x - c( TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE,
On Tue, 19 Jun 2007, spime wrote:
Is there any windows version of Design package???
Not at the moment. It is being updated for changes in R 2.5.0.
[This would be a FAQ except that it should stop being asked soon]
-thomas
Frank E Harrell Jr wrote:
spime wrote:
I haven't
For Hosmer-Lemeshow statistic look:
http://people.ufpr.br/~giolo/CE073/CodigosR/gof_bino.txt
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40 S 49° 16' 22
Ohttp://maps.google.com/maps?f=qhl=enq=Curitiba,+Brazillayer=ie=UTF8z=18ll=-25.448315,-49.276916spn=0.002054,0.005407t=kom=1
On
Hi, i need help building a program for the evaluation of a cash or nothing
option. The option is written on a stock that today has a price of X. Nine
months before i will have this situation:
If aXb the option pays 3 dollars
If Xa or Xb the option pays nothing
The price of the title is
Here is a slight variation. The second line is unchanged from my
prior solution but the first line is different. The previous one I posted
was slightly more complex and took about 50% longer to run than
this one:
xx - (cumsum(!x) + 1) * x
(seq_along(x) - match(xx, xx) + 1) * x
#
It is of great help for your advice. Thanks a lot to you all.
livia wrote:
Hi, I would like to minimize the value of x1-x2, x2 is a fixed value of
0.01, x1 is the quantile of normal distribution (0.0032,x) with
probability of 0.7, and the changing value should be x. Initial value for
x is
On Tue, 19 Jun 2007, spime wrote:
Is there any windows version of Design package???
Yes, the version put up this morning works on 2.5.x (at last).
You should be able to get a Windows build now: it is showing for me on
CRANextras (where I put it an hour or so ago: it will reach CRAN mirrors
in
Hello,
I wonder if it's possible to put names above column names.
Do you know if it's possible?
thanks.
___
[[alternative HTML version deleted]]
Hello,
You are looking for the box function, and its bty argument. For example,
this one will do the trick.
R box( bty = L)
?par gives more information on the potential values for bty.
Cheers,
Romain
Talloen, Willem [PRDBE] wrote:
hi all,
I'm trying for quite some time to have an x- and
The new 2.10.x series of the RGtk2 package has recently become available on
CRAN. RGtk2 is a package for creating graphical user interfaces (GUI's) in R
and is similar in purpose to the tcltk package. RGtk2 binds to and enables
the extension of the GTK+ user interface library, as well as several
Hi, I am trying to write a function with the following codes and I would like
it to return the values for alpha
beta para parab seperately. Then I would like to use this funstion for
variable with factor a and b. But the result turns out to be a matrix
with element like Numeric,2 ... I guess
I am having trouble calling the lmer function in the {Matrix}
package. I first installed and loaded {Matrix} as follows:
install.packages(Matrix)
library(Matrix)
The package loaded successfully, however when I attempted to call
lmer, I received the following message:
Error: could not
Hello, I am using the following codes to plot a histogram and density line
for x. For the density line, I just want it to show the two tails, eg, for x
larger than 0.05 ans smaller than -0.05
hist (x, seq(-0.1,0.1,0.01),freq = FALSE)
lines (density(x,bw=SJ), x 0.05 x (-0.05), col = red)
But is
Hi,
I am using R to fit statistical models to data were the observations are
means of the original data. R is used to calculate the mean before fitting
the model. My problem is: When R calculates the means using tapply, the
class of the means differs from the class of the original data, which
That did the trick. Thanks.
Steve
On Jun 19, 2007, at 12:10 PM, David Barron wrote:
It's now in the lme4 package.
On 19/06/07, Steve Brady [EMAIL PROTECTED] wrote:
I am having trouble calling the lmer function in the {Matrix}
package. I first installed and loaded {Matrix} as follows:
At 05:29 AM 6/19/2007, elyakhlifi wrote:
hello,
are there functions to detecte outlying observations in samples?
thanks.
library('car')
? outlier.test
library('outliers')
? grubbs.test
? dixon.test
? cochran.test
? chisq.out.test
Try:
plot(.., bty='l')
Does that do what you want? (see the bty parameter in ?par for details)
If you don't want the lines extending beyond the axes on the right and
top then you could do something more like:
plot(5:10, 5:10, bty='n')
library(TeachingDemos)
lines(cnvrt.coords( c(0,0,.5),
It's now in the lme4 package.
On 19/06/07, Steve Brady [EMAIL PROTECTED] wrote:
I am having trouble calling the lmer function in the {Matrix}
package. I first installed and loaded {Matrix} as follows:
install.packages(Matrix)
library(Matrix)
The package loaded successfully, however
I expect there's a more elegant way of doing this, but this should work:
set.seed(101)
x - rnorm(500,sd=.03)
hist (x, seq(-0.1,0.1,0.01),freq = FALSE)
d - density(x,bw=SJ)
lowt - d$x -.05
upt - d$x .05
lines (d$x[lowt],d$y[lowt], col = red)
lines(d$x[upt],d$y[upt], col = red)
On 19/06/07,
Dear All,
I'd like to fit a kind of logistic model to small data-set using nonlinear
least-squares regression. A transcript of R-script are reproduced below.
Estimated B and T (the model's coeff, herein B=-8,50 and T=5,46) seem
appropriate (at least visually) but are quite diff from those
You wChange the function 'parameter'
sapply(split(variable,list(a,b)),parameter)
On 6/19/07, livia [EMAIL PROTECTED] wrote:
Hi, I am trying to write a function with the following codes and I would
like
it to return the values for alpha
beta para parab seperately. Then I would like to use
First, to return several values from your function 'parameter', you can use
a list:
parameter - function (...) {
...
list(alpha=alpha,beta=beta,para=para,parab=parab)
}
Then, you may use:
sapply(split(variable,list(a,b)), parameter)
(tapply also works but return a matrix of lists)
Dear helpeRs,
the following data set comes from Johnson/Wichern: Applied Multivariate
Statistical Analysis, 6th ed, pp. 304-306.
/X - structure(c(9, 6, 9, 3, 2, 7), .Dim = as.integer(c(3, 2)))
Y - structure(c(0, 2, 4, 0), .Dim = as.integer(c(2, 2)))
Z - structure(c(3, 1, 2, 8, 9, 7), .Dim =
tapply gives an array: you want to use as.vector() on its result.
On Tue, 19 Jun 2007, John Phillips wrote:
Hi,
I am using R to fit statistical models to data were the observations are
means of the original data. R is used to calculate the mean before fitting
the model. My problem is:
m - manova(U~factor(rep(1:3, c(3, 2, 3
summary(m,test=Wilks)
Df Wilks approx F num Df den Df Pr(F)
factor(rep(1:3, c(3, 2, 3))) 2 0.0385 8.1989 4 8 0.006234 **
Residuals 5
---
Dietrich Trenkler wrote:
Dear helpeRs,
the following data set comes from Johnson/Wichern: Applied Multivariate
Statistical Analysis, 6th ed, pp. 304-306.
/X - structure(c(9, 6, 9, 3, 2, 7), .Dim = as.integer(c(3, 2)))
Y - structure(c(0, 2, 4, 0), .Dim = as.integer(c(2, 2)))
Z -
Your B coefficient differs by a suspicious-looking factor of 2.30... (ln(10).
Does SPSS log() mean log10 or ln? R log(x) uses ln(x).
S
Eduardo Esteves [EMAIL PROTECTED] 19/06/2007 17:19:35
Dear All,
I'd like to fit a kind of logistic model to small data-set using nonlinear
least-squares
I don't think it's there. I have had a look at the
ref doc and lmer does not show up.
Have a look at
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/67904.html
It looks like it's in the lme4 package now.
--- Steve Brady [EMAIL PROTECTED] wrote:
I am having trouble calling the lmer
Dear helpers,
I need help to create a PDF file like the example
---
|Title |
---
| |
| Text (print a list) |
Your subsetting expression in lines does not make any
sense at all.
Not tested but maybe something like:
lines (density(subset(x, x 0.05 x -0.05)bw=SJ),
col='red)
--- livia [EMAIL PROTECTED] wrote:
Hello, I am using the following codes to plot a
histogram and density line
for x. For the
On 6/19/07, Juan Pablo Lewinger [EMAIL PROTECTED] wrote:
I've searched the archives and read the xyplot help but can't figure
out the 2 lattice questions below?
Consider:
library(lattice)
DF - data.frame(x=rnorm(20), y=rnorm(20), g1=rep(letters[1:2], 10),
On 6/18/07, Matthew Trunnell [EMAIL PROTECTED] wrote:
Aha! So to expand that from the original expression,
table(table(d$filename, d$email_addr))
0 1 2 3
253 20 8 9
I think that is exactly what I'm looking for. I knew it must be
simple!!! What does the 0 column represent?
Hi All,
I am trying to build an R package. My code and help files work through
smoothly when I run Rcmd check. However, examples couldn't pass the check.
The reason maybe that the data files I wanted to use were not created and
loaded. What I have done is the following:
1. use save command to
On 6/19/07, RICHARD PITMAN [EMAIL PROTECTED] wrote:
I am using the following code:
library(lattice)
data-read.csv(data.csv)
attach(data)
fig-xyplot(S_t~month|event,
key= list(text=list(lab=c(Time to first CV
event - Data,
Survival post
Hi,
I got the following error. Sorry but this time I couldn't reproduce it
with a simple chunk of code:
.TM.repl.i.2col(): drop 'matrix' case ...
Error in .nextMethod(x = x, i = i, j = j) :
'i' has no integer column number should never happen; please report
In addition: Warning
Hi Deepayan,
I, and probably quite a few others, will find this very useful until you
find the time to wrap up a proper implementation.
Many thanks,
BestR,
Mark.
Deepayan Sarkar wrote:
On 6/19/07, Juan Pablo Lewinger [EMAIL PROTECTED] wrote:
I've searched the archives and read the xyplot
R-Help,
I am executing a R script and would like to put multiple plots into a
single file. For some reason the contents of plotfile.jpg always seem to
contain the last plot and not all plots.
If I do same thing with pdf, a multiple plot file is created.
Can you help me?
Regards,
Bill
Bill
On Tue, 2007-06-19 at 15:39 -0400, Bill Hunsicker wrote:
R-Help,
I am executing a R script and would like to put multiple plots into a
single file. For some reason the contents of plotfile.jpg always seem to
contain the last plot and not all plots.
If I do same thing with pdf, a
R-helpers:
I tried googling and couldn't find anything.
I have a function I am sourcing into R that does some calculations to
generate a simulated dataset. I currently have a a list set up to store
the outputs from the function and a plot of one of them (a set of
ordered pairs) like this:
spime wrote:
Is there any windows version of Design package???
Soon the new version will will make its way to Windows, probably in a
day or two.
Frank
Frank E Harrell Jr wrote:
spime wrote:
I haven't find any helpful thread. How can i calculate BIC and
Hosmer-Lemeshow
Hello everbody,
i'm currently using the anova()-test for a small data.frame of 40
rows and 2 columns. It works well, but is there any preconditions for
a valid variance analysis, that i should consider?
Thank you for your answer,
Daniel
__
On Tue, 19 Jun 2007, Marc Schwartz wrote:
On Tue, 2007-06-19 at 15:39 -0400, Bill Hunsicker wrote:
R-Help,
I am executing a R script and would like to put multiple plots into a
single file. For some reason the contents of plotfile.jpg always seem to
contain the last plot and not all
On Tue, 2007-06-19 at 21:09 +0100, Prof Brian Ripley wrote:
On Tue, 19 Jun 2007, Marc Schwartz wrote:
On Tue, 2007-06-19 at 15:39 -0400, Bill Hunsicker wrote:
R-Help,
I am executing a R script and would like to put multiple plots into a
single file. For some reason the contents of
Hi,
I'am trying to make a multiple bar plot over a map and I'm having difficulties
with the distance
between axes labels and the axis. Trying to control this with mgp does not
help because it
controls both axes simultaneously. For example, with default values (mgp =
c(3, 1, 0)) y-axis
labels
Dear R Users,
I hope that there is someone who has an experience with a problem that I
describe below and will help me.
I must buy new desktop computer and I'm wondering which processor to choose
if my only aim is to speed up R. I would like to reduce a simulation time -
sometimes it takes days.
Hello,
I have a question about error handling. I run simulation studies and often
the program stops with an error, for example during maximum likelihood. I would
like the program not to stop but to continue and I would like to ask how the
error handling can be set up for this (if it can).
On Tue, 2007-06-19 at 14:31 -0600, Héctor Villalobos wrote:
Hi,
I'am trying to make a multiple bar plot over a map and I'm having
difficulties with the distance
between axes labels and the axis. Trying to control this with mgp does not
help because it
controls both axes simultaneously.
Hi Robert,
Here's my 2 cents.
64-bit is a memory issue, not a speed issue per se. If a concern is
increasing RAM (which is important in R since objects are stored in
RAM), then you will want to get 64 bit if you plan on getting a
computer with over 4GB RAM. I'm not sure about this (someone
This is FAQ 7.32 How can I capture or ignore errors in a long simulation?
-thomas
On Tue, 19 Jun 2007, Peter Sajosi wrote:
Hello,
I have a question about error handling. I run simulation studies and often
the program stops with an error, for example during maximum likelihood. I
On Tue, 19 Jun 2007, Robert McFadden wrote:
Dear R Users,
I hope that there is someone who has an experience with a problem that I
describe below and will help me.
I must buy new desktop computer and I'm wondering which processor to choose
if my only aim is to speed up R. I would like to
Hi
Vikas Rawal wrote:
I want to use grid to modify some boxplots made using ggplot. I would
really appreciate if somebody could guide me to a resource on how to
use grid to modify such graphics. I guess the basic approach will be
similar to using grid to modify lattice graphics. To that
Dear R experts,
Suppose I have a data.frame recording the date and test results of
some subjects like this:
Name Date results
John 01/01/1991 2
John 02/01/1991 3
John 09/0101991 4
Micheal 02/01/1991 4
Micheal 04/01/1991 5
How to select the earliest (or latest) test result from all
I am wrestling with time and date data. I came up with a way to plot and
label a histogram with time of day on the x-axis, but it seemed like a
lot more work than should be necessary. Is there a better way to do what
I am trying to do?
require(chron)
# read input data
data =
Here is one way of doing it:
x - Name Date results
+ John 01/01/1991 2
+ John 02/01/1991 3
+ John 09/01/1991 4
+ Micheal 02/01/1991 4
+ Micheal 04/01/1991 5
x - read.table(textConnection(x), header=TRUE, as.is=TRUE)
x$Date - as.POSIXct(strptime(x$Date, %m/%d/%Y))
# earliest
(early - by(x,
?invisible
-Original Message-
From: Jason Q McClintic [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch r-help@stat.math.ethz.ch
Sent: 6/19/07 2:04 PM
Subject: [R] A question about plots and lists in functions
R-helpers:
I tried googling and couldn't find anything.
I have a function I am
Hi All,
I am running Ubuntu Feisty (7.04) on a Thinkpad T41. I've installed
the nowebm package for Ubuntu. Working from this HowTo:
http://www.ci.tuwien.ac.at/~leisch/Sweave/example-1.Snw
I try to compile the example *.Snw as in the Sweave manual:
[EMAIL PROTECTED]:~/Desktop/Sweave/example1$
Matt,
On 19 June 2007 at 21:23, M. Jankowski wrote:
| Hi All,
|
| I am running Ubuntu Feisty (7.04) on a Thinkpad T41. I've installed
| the nowebm package for Ubuntu. Working from this HowTo:
| http://www.ci.tuwien.ac.at/~leisch/Sweave/example-1.Snw
| I try to compile the example *.Snw as in
Dirk,
Your solution worked wonders! This is outstanding! Thank you!
Matt
On 6/19/07, Dirk Eddelbuettel [EMAIL PROTECTED] wrote:
Matt,
On 19 June 2007 at 21:23, M. Jankowski wrote:
| Hi All,
|
| I am running Ubuntu Feisty (7.04) on a Thinkpad T41. I've installed
| the nowebm package for
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