The following returns zeros where elements do match, and NaN's where they don't match
mat1 <- matrix(c(1,2,1,2), 2, 2) mat2 <- matrix(c(0,0,1,2), 2, 2) mat1 %% mat2 ______________________Scott Chamberlain Rice University, EEB Dept. On Tuesday, May 31, 2011 at 8:41 AM, Alaios wrote: > Dear all, > I have a few matrices that are roughly the same (same dimensions). > How I can find fast which are the elements that differ? > > Best Regards > Alex > > ______________________________________________ > R-help@r-project.org (mailto: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.
