Hi Chris82, Yes. Try this: testmat1 <- matrix(c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4) testmat2 <- matrix(c(1,2,3,5,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4)
b=NULL for (i in 1:4){ for (j in 1:4){ b <- c(b,setequal(testmat1[j,],testmat2[i,])) b } } b HTH, Jorge On Mon, Nov 10, 2008 at 10:11 AM, Chris82 <[EMAIL PROTECTED]> wrote: > > Hello R-users, > > I have a little problem. > > I compare each row of a matrix with each row of another matrix. > > testmat1 <- matrix(c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4) > testmat2 <- matrix(c(1,2,3,5,5,6,7,8,9,10,11,12,13,14,15,16), nrow=4) > > Both matrix differs in the last row. > > Now I create a loop: > > for (i in (1:4)){ > for (j in (1:4)){ > b <- (c(setequal(testmat1[j,],testmat2[i,]))) > print(b) > } > } > > R outputs me the following: > > [1] TRUE > [1] FALSE > [1] FALSE > [1] FALSE > [1] FALSE > [1] TRUE > [1] FALSE > [1] FALSE > [1] FALSE > [1] FALSE > [1] TRUE > [1] FALSE > [1] FALSE > [1] FALSE > [1] FALSE > [1] FALSE > > but I need one vector like this: > > [1] TRUE FALSE FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE TRUE FALSE > FALSE FALSE FALSE FALSE > > Any ideas? > > thanks > -- > View this message in context: > http://www.nabble.com/Make-one-vector-from-matrix-comparison-tp20421761p20421761.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.