Displaying 20 results from an estimated 11000 matches similar to: "run a script during R CMD build"
2007 Jun 04
2
locked environment and inheritance
Hi,
I have a S3 package with namespace called "myS3Pkg". Inside my package I would like to create
a S4 class which extends (adds 2 slots) another S4 class from some other package. The class
should be created in "myPkg" environment (and not global environment).
Using:
setClass("myS4class", representation("otherS4class", mydata = "numeric"),
2006 Jul 24
1
deparse - width.cutoff
I have a question about "deparse" function in R
What is the reason that "deparse" use an argument like "width.cutoff" ?
Why the maximum cutoff is 500?
I was manipulating an R formula and used "deparse". Since the length of user's formula was greater then 500, my code didnt work.
thanks
Johan
johan Faux <johanfaux@yahoo.com> wrote: I have a
2007 Jan 30
3
silent loading of packages
I would like to turn off all the messages during
library(aPackage) or
require(aPackage)
I tried different commands: invisible, capture.output, sink but none of them is working.
For example, loading VGAM, gives a lot of unnecessary messages:
> library(VGAM)
Attaching package: 'VGAM'
The following object(s) are masked from package:splines :
bs
The
2006 Jan 13
2
for loop should check the looping index !!
Hello ,
a<-c(1)
for(i in 2:length(a))
do.something with a[[i]]
I get :
Error in a[[i]] : subscript out of bounds
Am I missing something here? Doesnt R check the value of i inside "for" and if the condition is not tru, dont do anything ????
thanks,
johan
---------------------------------
Got holiday prints? See all the ways to get quality
2005 Jul 18
5
colnames
Hi,
I have a matrix with column names starting with a character in [0-9]. After some matrix operations (e.g. copy to another matrix), R seems to add a character 'X' in front of the column name. Is this a normal default behaviour of R? Why has it got this behaviour? Can it be changed? What would be the side effect?
Thank you.
Regards,
Gilbert
[[alternative HTML version deleted]]
2005 Jul 25
5
passing formula arguments cv.glm
I am trying to write a wrapper for the last example in help(cv.glm) that
deals with leave-one-out-cross-validation (LOOCV) for a logistic model.
This wrapper will be used as part of a bigger program.
Here is my wrapper funtion :
logistic.LOOCV.err <- function( formu=NULL, data=NULL ){
cost.fn <- function(cl, pred) mean( abs(cl-pred) > 0.5 )
glmfit <- glm(
2004 Sep 06
4
substitution in expression
I have been struggling with this problem for a while and I hope someone
could help me. Or if someone could point me to a section in the manual I
would be grateful.
x <- "my"
plot(1:10, main=expression(paste( x, Delta, "values" )))
Q : How do I get the title to say "my (triangle symbol) values" ?
The following trial-and-error produced mainly errors :
2004 Jul 30
2
pairwise difference operator
There was a BioConductor thread today where the poster wanted to find
pairwise difference between columns of a matrix. I suggested the slow
solution below, hoping that someone might suggest a faster and/or more
elegant solution, but no other response.
I tried unsuccessfully with the apply() family. Searching the mailing
list was not very fruitful either. The closest I got to was a cryptic
chunk
2004 Oct 28
2
Running R on a grid engine
Dear Group,
I am using DEAL package for modeling signal
transduction nets. This process is deal slow on a
SunFire server with 8 gigs ram.
we have a grid that can process much faster that one
individual server.
However, to start the process in Grid, I have to give
a command or submit a batch process.
Is there any way, I can run R in bach process.
I tried the following:
R CMD |
2004 Oct 07
4
Re:How to create a R -application
Dear R- users and Helpers
I am a beginner for R. I am using R to implement EM algorithm for treating Missing values. I would like to know how can save or compile my logical R commands to an application; so that the next time I could just execute the R- file.
Example for calculating the mean of a data set
x <- c(8,11,16,18,6,4,20,25,9,13)
u <- mean(x)
u
Now I would like to save
2007 Aug 19
1
Question on R server and TinnR
Hi -
Classic question that I tried to look up online and couldn't find a clear answer. It seems that I can have R to act as a server. But I never know how this works. Would anyone please provide an example or introduction material where I can learn about this? I'm trying to build an environment where computation are distributed/delegated among different servers requested whenever I need.
2004 Mar 15
2
make check on Solaris 8 fails due to plot
Dear all,
I am having trouble trying to install R-1.8.1 on a Sun Solaris 8
(Generic_108528-23 version) machine. The configuration was successful but
make check fails. I traced the the problem to the plot() function.
> 1 + 1
[1] 2
> capabilities()
jpeg png tcltk X11 GNOME libz http/ftp sockets
TRUE FALSE TRUE TRUE FALSE TRUE TRUE TRUE
2005 Mar 02
5
Differences between package and library terminology
Just out of curiosity, what is the difference between the terms for
package and library ? Why are we loading a package with the library()
command ?
If this is a case of RTFM, I would be happy to do so if pointed in the
right direction. I have searched the FAQ and mail archives and only came
up with http://tolstoy.newcastle.edu.au/R/help/05/02/12162.html but this
still does not explain what is
2004 Oct 01
3
same test statistic for t-test with and without equal variance assumption
Could some kindly tell me if I am supposed to be getting the same test
statistic value with var.equal=TRUE and var.equal=FALSE in t.test ?
set.seed(1066)
x1 <- rnorm(50)
x2 <- rnorm(50)
t.test(x1, x2, var.equal=FALSE)$statistic # 0.5989774
t.test(x1, x2, var.equal=TRUE)$statistic # 0.5989774 ???
Here are my own calculations that shows that perhaps the result when
var.equal=TRUE is
2005 Nov 06
3
How can I assign an argument to transfer whether by ref or by value?
Hello guys,
I am wondering the default way of transferring arguments in R. Is it by
value or by ref in default case, or could that be changed explicitly?
Cheers,
Xiaofan
---
Xiaofan Li
Department of Applied Mathematics and Theoretical Physics
University of Cambridge
2008 Sep 11
9
How to load functions in R
Hello,
I am trying to use self created functions in other scripts than the one
where they are stored.
For the moment I am using the following structure of commands to do
that:
1. Load the text file with the functions in the current script:
x=parse("path")
2. transform the tex in a function: f1=eval(x[1]), f2=eval(x[2]) if more
than one function is stored in the text file
3. use the
2005 Nov 09
5
How to find statistics like that.
Hi there,
Suppose mu is constant, and error is normally distributed with mean 0 and
fixed variance s. I need to find a statistics that:
Y_i = mu + beta1* I1_i beta2*I2_i + beta3*I1_i*I2_i + +error, where I_i is
1 Y_i is from group A, and 0 if Y_i is from group B.
It is large when beta1=beta2=0
It is small when beta1 and/or beta2 is not equal to 0
How can I find it by R? Thank you very much
2007 Jul 24
7
Obtaining summary of frequencies of value occurrences for a variable in a multivariate dataset.
Hi all,
If the question below as been answered before I
apologize for the posting.
I would like to get the frequencies of occurrence of
all values in a given variable in a multivariate
dataset. In short for each variable (or field) a
summary of values contained with in a value:frequency
pair, there can be many such pairs for a given
variable. I would like to do the same for several such
variables.
2003 Mar 17
4
X11 connection error in web cgi mode only
Dear all,
I am trying to create a web interface using Perl-CGI to call R plots and
to display them.
The following codes works perfectly fine when I copy and paste into the
console directly or if I save it into script.file and then R --no-save <
script.file producing the graphs.
jpeg("graph.jpeg", width=400, height=400)
plot(rnorm(100))
dev.off()
Now, I put the line system("R
2003 Dec 10
3
How to calculate standard error for a vector?
Hi all!
I 'm beginner and i develop a bio-application with VB and i need some
statistic functions!
could i calculate StdError, CoeffOfVariance, SumSquared with R langage? if
yes, what are functions to use?
I need also to use ANOVA and t-test...
Thanks for your help!
Laurent Houdusse
Analyste Programmeur