[R] Passing in arguments into function

Hi, I had a function that looked like: diff - lm(x ~ y + z) How can I pass the argument to the 'lm' function on the fly? E.g., if I pass it in as a string (e.g. x ~ y + z), then the lm function treats it as a string and not a proper argument. many thanks [[alternative HTML

[R] string question

Hi, How can I get double quotes embedded in the string? Example: -- str1 - 'xyz' ## desired output # abcxyz qr2 - paste('abc',str1,sep='') print(qr2) - Actual output: [1] abc\str\ I also tried putting an escape sequence before the quote, but couldn't get the

[R] Header in read.table() function

Hi, I wanted to read in a table that had hyphens in the header / column names. When I read it in however, it replaces the hyphens with a dot. Which parameter in the read.table function do I need to set to change this behaviour? Example code: jm - matrix(1:4,2,2) rownames(jm) - c('a','b')

Re: [R] Header in read.table() function

Hi All, I hadn't realized the 'a-1' will open such a can of worms! Actually, the header elements will look something like 'ABCD-002-234-01D' (instead of 'a-1'). I get the files from somwhere else, so I cannot change how the input file is. Should I go ahead with the check.names=FALSE option?

[R] Newbie question on precision

Hi all, How can I get R to change the default precision value? For example: x=0.9 1-x [1] 0 Is there a way that I can get a non-zero value using some parameter, or some package? many thanks. [[alternative HTML version deleted]]

[R] Rgraphviz installation

Hi, I wanted to install Rgraphviz. From the R GUI, I downloaded the package but when I tried to load it I got the following error message: This application has failed to start because libcdt-4.dll was not found. Re-installing the application may fix this problem. The R commands and errors are:

[R] copyING directories and files

Hi, I am using the windows version of R. I wanted to copy a directory (containing several files) to another directory. Is there any command in R that will let me do this (something like the 'cp' command in UNIX)? I have looked at 'file.copy', but as the name implies I think it only copies one

Re: [R] copyING directories and files

to call xcopy or robocopy, or cp given you have some unix tools installed. Uwe Ligges Paul Evans wrote: Hi, I am using the windows version of R. I wanted to copy a directory (containing several files) to another directory. Is there any command in R that will let me do this (something

[R] Lattice package - Trellis

Hi, I was trying to make a graph using trellis, and my code is: - library(lattice) makeGraph - function(){ trellis.device() tbg - trellis.par.get(background) tbg$col - white trellis.par.set(background,tbg) # Test Data

[R] Clustering for Ordinal data

Hi, I just wanted to check whether there is a clustering package available for ordinal data. My data looks something like: #1 #2 #3 #4. A B C D... D B C A... D C A A... where each column represents a sample, and each row some ordinal values. I would like to cluster such that similar samples

[R] newby question

Hi, I work with bio-conductor, but this is probably a basic R question. I want to emulate the GOBPOFFSPRING$GO:0008150 command: allBP - GOBPOFFSPRING$GO:0008150 class(allBP) [1] character length(allBP) [1] 16066 I want to create a function so that I can execute the command by passing as

Re: [R] newby question

Hi all, Thanks very much for the prompt responses! All the suggestions worked :) Paul From: Martin Morgan mtmor...@fhcrc.org Cc: r-h...@stat.math.ethz.ch Sent: Saturday, July 4, 2009 1:01:16 PM Subject: Re: [R] newby question Hi Paul -- Paul Evans wrote

[R] Heatmap: draw horizontal line

Hi, I wanted to draw a heatmap with some horizontal lines. For example: #-- code -- mat - matrix(-1:1,7,9) heatmap.2(mat,Rowv=NA,trace = 'none',key=F) #end code - In this heatmap, I want to subgroup the rows. For instance, I would like to group rows 5,6 7 together, and would

Re: [R] Heatmap: draw horizontal line

',key=F, add.expr = abline(h = c(3.5,5.5), lwd = 3)) what your are looking for? hth, Matthias Paul Evans schrieb: Hi, I wanted to draw a heatmap with some horizontal lines. For example: #-- code -- mat - matrix(-1:1,7,9) heatmap.2(mat,Rowv=NA,trace = 'none',key=F) #end code

[R] Vizualization of points within sets

Hi all, I have a visualization question regarding sets. My problem is as follows: I have several sets, each having some members (or 'points'). I would like to connect the points, while keeping the sets. For example, if I have 3 sets (Set 1 contains points A, B, C): Set 1: -- A, B, C Set

[R] download.file()

Hi, I wanted to download a file and did the following: - fileLink - 'ftp://ftp.ncbi.nih.gov/pub/geo/DATA/supplementary/series/GSE1000/GSE1000_RAW.tar' download.file(fileLink,'/geoDat') trying URL

Re: [R] download.file()

Aaah...I see now. Thanks !! - Original Message From: Henrik Bengtsson [EMAIL PROTECTED] To: Paul Evans [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Tuesday, March 18, 2008 11:59:45 AM Subject: Re: [R] download.file() On Tue, Mar 18, 2008 at 8:57 AM, Henrik Bengtsson [EMAIL PROTECTED

Re: [R] download.file()

Thanks Henrik. Also, is there a method/package (in R) with which I can unpack a tar file programatically? thanks again! - Original Message From: Henrik Bengtsson [EMAIL PROTECTED] To: Prof Brian Ripley [EMAIL PROTECTED] Cc: Paul Evans [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent

Re: [R] download.file()

for the reply! - Original Message From: Stefan Grosse [EMAIL PROTECTED] To: r-help@r-project.org; Paul Evans [EMAIL PROTECTED] Sent: Tuesday, March 18, 2008 1:57:46 PM Subject: Re: [R] download.file() On Tuesday 18 March 2008 06:32:18 pm Paul Evans wrote: PE Also, is there a method/package (in R