Suppose if I modify the question as: > x A B C D E a 0 0 0 0 1 b 0 1 0 2 1 c 1 2 0 1 2 d 0 0 0 2 0 e 0 1 2 0 2
> y D E F b 2 1 2 a 4 0 1 f 1 4 1 I need to get a matrix, which has the dimension being the union of the row names and column names of both x and y such that the new matrix 'xx' should contain only the corresponding elements in x, rest all should be NA. Any ideas for this? Thanks, Shubha -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shubha Vishwanath Karanth Sent: Monday, June 09, 2008 4:57 PM To: [EMAIL PROTECTED] Subject: [R] Overlaying the matrices Hi R, I have a matrix, > x1=matrix(NA,6,6,dimnames=list(letters[1:6],LETTERS[1:6])) > x1 A B C D E F a NA NA NA NA NA NA b NA NA NA NA NA NA c NA NA NA NA NA NA d NA NA NA NA NA NA e NA NA NA NA NA NA f NA NA NA NA NA NA > x2=matrix(rpois(9,1),3,3,dimnames=list(c("b","a","f"),c("D","E","F"))) > x2 D E F b 0 3 0 a 2 2 1 f 1 0 0 I need to put the values of x2 in the corresponding elements of x1. So then, x1 would look like: A B C D E F a NA NA NA 2 2 1 b NA NA NA 0 3 0 c NA NA NA NA NA NA d NA NA NA NA NA NA e NA NA NA NA NA NA f NA NA NA 1 0 0 What would be the best way to do this? Many Thanks, Shubha This e-mail may contain confidential and/or privileged i...{{dropped:13}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. This e-mail may contain confidential and/or privileged i...{{dropped:10}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
