Re: [R] request: How to ignore columns having zero sums

2008-10-14 Thread Muhammad Azam
Dear Jorge Thanks a lot. - Original Message From: Jorge Ivan Velez <[EMAIL PROTECTED]> To: Muhammad Azam <[EMAIL PROTECTED]> Cc: R mailing list Sent: Tuesday, October 14, 2008 1:52:15 PM Subject: Re: [R] request: How to ignore columns having zero sums Dear Muhammad,

Re: [R] request: How to ignore columns having zero sums

2008-10-14 Thread Jorge Ivan Velez
Dear Muhammad, Try also x <- c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,0,0,0,0,0,0,0,0); x1 <- array(x, dim=c(4,6)) x1[,apply(x1,2,function(x) !all(x==0))] HTH, Jorge On Tue, Oct 14, 2008 at 4:02 AM, Muhammad Azam <[EMAIL PROTECTED]> wrote: > Dear friends > I have an array consist of r-rows and c-col

Re: [R] request: How to ignore columns having zero sums

2008-10-14 Thread Dimitris Rizopoulos
try this: x <- c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,0,0,0,0,0,0,0,0); x1 <- array(x, dim=c(4,6)) ind <- colSums(x1) != 0 x1[, ind] I hope it helps. Best, Dimitris Muhammad Azam wrote: Dear friends I have an array consist of r-rows and c-columns e.g. x=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,0,0,0,0

Re: [R] request: How to ignore columns having zero sums

2008-10-14 Thread Muhammad Azam
Dear Dimitris Thanks a lot. - Original Message From: Dimitris Rizopoulos <[EMAIL PROTECTED]> To: Muhammad Azam <[EMAIL PROTECTED]> Cc: R Help Sent: Tuesday, October 14, 2008 10:10:54 AM Subject: Re: [R] request: How to ignore columns having zero sums try t

[R] request: How to ignore columns having zero sums

2008-10-14 Thread Muhammad Azam
Dear friends I have an array consist of r-rows and c-columns e.g. x=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,0,0,0,0,0,0,0,0); x1=array(x, dim=c(4,6)) output is > x1 [,1] [,2] [,3] [,4] [,5] [,6] [1,]123400 [2,]123400 [3,]123400