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I think I must be missing something obvious, but I'm having trouble getting a data transformation to work on groupings of data within a data frame (csss3) as defined by 2 factors (population, locid). The data are sorted by year within locid within population and I want to lag another variable (dbc), i.e, shift them down by 1 row replacing the first row with NA, within groups defined by

Dear all, I have a problem with the "subset()" function. I spent all day yesterday with a collegue to solve it and we did not find a satisfying solution (even in the archived mails), so I ask for your help. Let's say (for a simple example) a matrix mat: R> mat cola colb colc [1,] 1 4 7 [2,] 2 5 8 [3,] 3 6 9 My goal is to select the lines of the matrix on the basis of the

Sorry I put there the ref. : I am using R Version 2.0.1 on a Debian. Florence. ---------- Forwarded message ---------- From: Florence Combes <fcombes@gmail.com> Date: Oct 28, 2005 2:48 PM Subject: multiple graphs in the same ps file ? To: r-help@stat.math.ethz.ch Dear all, I would like to be able to store multiple graphs in one ps or pdf file, but I cannot achieve this only if I don't shut the "postscript" device between the...

Dear all, I just upgraded version of R to R 2.2.0, and I have a problem with a script that did not happen with my previous version. Here is the error : ----------------------------------------- > param<-read.table(file="param.dat",sep ="\t",header=TRUE,fill=TRUE, na.strings="NA") Erreur dans read.table.default(file = "param.dat", sep =

Hi I want to do something which seems straightforward, but I couldn't find the way to do this. I have a matrix called m for example, and a vector of values (let's call ind this vector) which are indices of lines I don't want to keep. for example I have: > m v1 v2 v3 [1,] 1 4 7 [2,] 2 5 8 [3,] 3 6 9 [4,] 10 11 12 > ind [1] 2 4 I would like to obtain this: > m2 v1 v2

Dear all, Once again I need your help ; I fond a way to do what I want but I am sure there is a better way.. maybe you can help me. I have a matrix, for example mat.tot : > mat.tot ID Desc M1 M2 1 1 gene1 0.5 0.2 2 2 gene2 -0.4 -0.1 3 3 gene3 1.0 1.2 4 4 gene1 0.6 0.3 5 5 gene2 -0.3 0.0 and I want to merge line 1 with line 4, and line 2 with line 5 because this is the same gene. I can

Dear all, Trying to produce 4 maImage plots (marray package) on the same device (2 on the top and 2 on the bottom) with the layout() function or the split.screen() function, we are facing the following problem: it seems that maImage() does nt care about any of these 2 functions, and plots only one image at a time. Maybe this is inherent to this maImage() function, but we did not find anything

Dear all, I would like to be able to store multiple graphs in one ps or pdf file, but I cannot achieve this only if I don't shut the "postscript" device between the graphs. here is what I managed to do : > postscript(file="test_graph.eps", onefile=TRUE) > plot(1:10) > plot(1:20) > > dev.off()

Dear all, I am using the package igraph and try to use the neighbors() function. I am a bit confused, see the following : Given a graph g with 18 vertices. Names of the vertices are indicated by : > V(irt.graph)$name [1] "AT2G41240" "AT3G13610" "AT3G02470" "AT3G30775" "AT3G18290" "AT4G13770" "AT1G01580"

Dear all, We are facing this problem for long, and so ask for your help. We are plotting 2 graphs in a postscript device (left part -layout function-), and the common legend for these graphs on the right part. The legend in the postscript device looks ok: this is color lines with numbers on the right (6 columns) , see the code below: > nblock<-c(1:48) > leg<-paste(c(1:npin),"

Dear R-helpers, I am running well Perl and R on my Debian Linux, and I tried RSPerl. Installation is ok and all simple functions run well. But I have a problem to call the "lines" function. I would like to draw an histogram with the density curve on. Is is OK in R with the command: >x<-rnorm(1000) >hist(x,prob=T) >lines(density(x)) for example. Now, I have a Perl script

Dear all, I try for long to understand exactly what is the factor type and especially how it works, but it seems too difficult for me.... I read paragraphs about it, and I understand quite well what it is (I think) but I still can't figure how to deal with. Especially these 2 mysteries (for me) : 1st when I make a dataframe (with the as.data.frame() or the data.frame() commands) from