[R] rev matrix

Hello I am looking for a function which performs the same thing as rev but on a matrix rather then a vector, based on one column. I'd be happy to read the man page if such a function exists. Thanks, Vera Lindsay __ [EMAIL PROTECTED] mailing list

Re: [R] rev matrix

On Thu, 14 Oct 2004 [EMAIL PROTECTED] wrote: Hello I am looking for a function which performs the same thing as rev but on a matrix rather then a vector, based on one column. I'd be happy to read the man page if such a function exists. If I understand you, it is easy to do by indexing, but