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I'm using 1.9.0 on Windoze 2k and I created a numeric matrix and used colnames() to give it some column names, but if I try to select a column using matrixname$validname I get a null return but if I use matrixname[,4] it works fine. Looking at the help I think this is because a matrix is not a recursive structure and I think it's saying I shouldn't be surprised nor attempt this.

Try as.matrix(df) where df may be subsetted. > From: "Chris Evans" <chris1 at psyctc.org> > To: s-news at lists.biostat.wustl.edu > Date: Sat, 24 Mar 2001 19:25:32 -0000 > Content-transfer-encoding: 7BIT > Subject: [S] extracting a matrix from a data frame > > I'm a researcher who often has to do my own statistics for various > reasons so apo...

This has probably been addressed here, but I can't find it if it has, and it may be up on the R project homepage or the CRAN pages, but if so .... ... so sorry if this has been answered before: question is, can I upgrade to 1.8.1 under Debian stable (a.k.a. "Woody")? The deb packages in the CRAN archive are clearly for 1.8.0 and those in the "unstable" distro for

I am keen to look at Rcgi as I want to put up some simple bits of R to do prescribed tasks on HTML form input. Rweb is overkill and worryingly flexible for what I want and it sounds as if Rcgi is more what I need. However, I can't get any of the URLs I've found for it to work over the last few days. Does anyone have a recent copy they could Email me or a working URL for it? TIA,

I prefer to use R on a linux box and ultimately need things to end up there to serve things up using David Firth's excellent CGIwithR and apache, but one step at a time and I've installed 1.8.1 under win2k. Another question that I'm sure is simple: is there a simple way to find the list of installed libraries I had in my 1.7.1 installation and use that to drive install.packages?