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Prof Brian Ripley <ripley <at> stats.ox.ac.uk> writes: > > Who said that RCurl::getURL worked with install.packages? > (At least, I assume this is from RCurl: you did not mention it.) > > install.packages() first calls available.packages(), and that...

I'm trying to dynamically build variable names to use on a list. Let's say I have a list like this one: l <- list(V1_1=c(1,2,3), V1_2=c('One','Two','Three')) And I succesfully...

Ma Ismail - NewYork-MEAG-NY <ima <at> meag-ny.com> writes: > > Hi, > > A few of the developers on our Quant team are using R for data calculation andto generate a resulting CSV file. They have R installed on their workstations...

P=data.frame(x=c(1,1,2,3,2,1),y=rnorm(6)) tapply(P$y,P$x,sum) regards, stefan On Mon, Nov 16, 2009 at 09:49:17AM -0800, Gunadi wrote: > > I am sure this is easy...

> >> > > > > The helpfiles for 'download.file' was not that helpful. But maybe it's just me > > not being able to read them correctly. > > Yes, looks like this is the case. > > > I tried to call install.packages with the 'method=wget', and...

Hi, I'm trying to build a vector of latex commands. However, I need the command strings to begin with a backslash "\". I have: test <- c('foo','bar') and I need to rebuild the array, encapsulating the text items with...

Yes. That's correct. The main problem is to solve a matrix where the colSums and rowSums are known. Credits to dwinsemius at comcast.net for pointing out the function "r2dtable" to me. Just feed it with the known margins...

I have : rs <- c(3, 2, 3, 4) cs <- c(4, 5, 3) And want: > matrix [,1] [,2] [,3] [1,] 1 2 0 [2,] 1 0 1 [3,] 1 1 1 [4,] 1 2 1 The rowSums in the above...

I'm trying to create a new column in my data.frame where subjects are categorized depending on values on four other columns. In any other case I would just nest a few ifelse statements, however, in this case i...

> > Just double all the backslashes and you are fine. > In order to see the outcome, use cat() (not print). > > Uwe Ligges > > On 16.06.2010 09:49, Stefan Petersson wrote: > > > > Hi, > > > > I'm trying to build a vector of latex...

hi, it fails, when the NA is surrounded by double quotes, which is the default way of quoting of the write.table command. x <- read.csv(textConnection('date,value + + 2009-01-01,10 + + 2009-02-01,1 + + "NA", 3'), colClasses...

hello, On Sun, Oct 18, 2009 at 08:29:19AM -0700, John Kane wrote: > Thanks Stefan, the annotate approach works beautifully. I had not got > that far in Hadley's book apparently :( > > I'm not convinced though that the explaination...

<stefan.petersson <at> inizio.se> writes: > > > Hi, > > I've set up a very simple R repository. Just a single source > library. Everything works fine. I can install the package on my client > using: > > install.packages(repos='http://www.myServer.se...

Hi, I suggest to use geom_text to add multiple labels. Put all the information needed by for your labels in a dataframe: lab = data.frame(x=namposts+2.5, y = temprange[2], label= mlabs) and add them to the...

Hi, I'm trying to create a distance matrix. And it works out somewhat ok. However, I suspect that there are some efficiency issues with my efforts. Plz have a look at this: donor <- matrix(c(3,1,2,3...

Yes! That's excactly what I need. Thank You so much! Den 11 sep 2014 21:20 skrev "David L Carlson" <dcarlson at tamu.edu>: > You want r2dtable(): > > > ?r2dtable > > set.seed(42) > > a <- r2dtable(1, seats, mandates) > addmargins(a[[1...

I have an MS Access database with one table and one column holding rep(1:10) I use: library(RODBC) channel <- odbcConnect("test") sqlQuery(channel, paste("SELECT col FROM tblTest"), believeNRows=FALSE) and get: 49 50 51 52 53 54...