Dear Daniele, Try this: A <- matrix(1:10,ncol=2) B <- matrix(10:20,ncol=2) A+B #[,1] [,2] #[1,] 11 21 #[2,] 13 23 #[3,] 15 25 #[4,] 17 27 #[5,] 19 29
HTH, Jorge On Thu, May 21, 2009 at 11:11 AM, daniele riggi <daniele.ri...@gmail.com>wrote: > Someone knows the existence of a function to sum the elements of the same > place A[i,j] B[i,j] of a matrix?thank you > > > -- > Dr. Daniele Riggi, PhD student > University of Milano-Bicocca > Department of Statistics > Building U7, Via Bicocca degli Arcimboldi, 8 > 20126 Milano, Italy > cell. +39 328 3380690 > mailto: daniele.ri...@gmail.com > > [[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.
