Try which(A == max(A), arr.ind = TRUE)
HTH, Jorge.- On Thu, Mar 29, 2012 at 10:27 PM, jpm miao <> wrote: > Hello, > > I would like to find the maximum element in a matrix or an array but it > does not return what I want. > > For example, If I have a 2*2 matrix A whose maximum element is the > A(1,2). I would like the answer (1,2), but it returns 3, which is the > ordinal if one counts by columns. Is there any function that returns (1,2)? > > > Thanks > > > A<-rbind(c(1,4), c(3,2))> A [,1] [,2] > [1,] 1 4 > [2,] 3 2> which.max(A)[1] 3 > > [[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.
