Thanks Rui,It worked.. Eliza > Date: Sun, 19 May 2013 22:27:41 +0100 > From: ruipbarra...@sapo.pt > To: eliza_bo...@hotmail.com > CC: r-help@r-project.org > Subject: Re: [R] coping zeros from matrix to another > > Hello, > > Try the following. > > set.seed(27846) > A <- matrix(sample(0:2, 16, TRUE), ncol = 4) > B <- matrix(1:16, ncol = 4) > > zeros <- which(A == 0, arr.ind = TRUE) > B[zeros] <- 0 > > > Hope this helps, > > Rui Barradas > > Em 19-05-2013 22:05, eliza botto escreveu: > > Dear useRs,i have two distance matrices A and B. The distances in A are > > linked with distances in B. What i want to do is the following...There are > > some points in A where distances are zero(those points are apart from usual > > diagonal of zero values).Whereas, in B the distances at those points are > > not necessarily zeros . i want "0" at those points in B where distance in A > > is zero. How can i do that??i hope my question is clearthanks indeed in > > advance,Eliza > > [[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. > > [[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.
