t(t(k)/div) # [,1] [,2] #[1,] 1 2.0 #[2,] 2 2.5 #[3,] 3 3.0 A.K.
----- Original Message ----- From: Sachinthaka Abeywardana <sachin.abeyward...@gmail.com> To: "r-help@r-project.org" <r-help@r-project.org> Cc: Sent: Thursday, May 2, 2013 2:28 AM Subject: [R] Divide matrix columns by different numbers Hi all, I have a feeling the most efficient way to do the following is to use apply, but I'm still wrapping my head around the function. k=matrix(1:6,nrow=3) div=1:2 Questions is how do I get R to divide the first column by 1 (div[1]) and the second column by 2 (div[2]) k/div treats k as a vector and does the following (not what I want) >k/div [,1] [,2] [1,] 1 2 [2,] 1 5 [3,] 3 3 Thanks, Sachin [[alternative HTML version deleted]] ______________________________________________ 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. ______________________________________________ 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.
