Re: [R] loop command to matrix

__ From: eliza botto To: "smartpink...@yahoo.com" Sent: Tuesday, November 27, 2012 1:53 PM Subject: RE: [R] loop command to matrix thanks arun. i m more interested in learning commands.  thankyou so much eliza > Date: Tue, 27 Nov 2012 10:45:37 -0800 > From: smartpink...@ya

Re: [R] loop command to matrix

HI, May be this helps you: set.seed(5) mat1<-matrix(sample(1:400,80,replace=TRUE),ncol=8,nrow=10)  split(mat1,col(mat1)) t(do.call(rbind,lapply(lapply(split(mat1,col(mat1)),function(x) cbind(matrix(x,ncol=1),mat1)),function(x){ res1<-rowMeans(t(apply(x,1,function(x) x[!(duplicated(x)|duplicated(

Re: [R] loop command to matrix

thanks rui!! how can it be that you advise something and it doesn't work :) eliza > Date: Tue, 27 Nov 2012 18:14:41 + > From: ruipbarra...@sapo.pt > To: eliza_bo...@hotmail.com > CC: r-help@r-project.org > Subject: Re: [R] loop command to matrix > > Hello, >

Re: [R] loop command to matrix

Hello, Try x <- matrix(1:18, ncol = 6) sapply(seq_len(ncol(x)), function(i) x[, i] - rowMeans(x[, -i])) Hope this helps, Rui Barradas Em 27-11-2012 17:51, eliza botto escreveu: Dear UseRs,Extremely sorry for a basic question. I have a matrix of 19 rows and 365 columns. what i want to do is