I forgot the reshape equivalent for converting from wide to long format. Can someone help as my matrix is very big. The followin is just an example.
> m <- matrix(1:20, nrow=4, dimnames=list(LETTERS[1:4], letters[1:5])) > m a b c d e A 1 5 9 13 17 B 2 6 10 14 18 C 3 7 11 15 19 D 4 8 12 16 20 > as.data.frame(cbind(rep(rownames(m), ncol(m)), rep(colnames(m), > each=nrow(m)), c(m))) V1 V2 V3 1 A a 1 2 B a 2 3 C a 3 4 D a 4 5 A b 5 6 B b 6 7 C b 7 8 D b 8 9 A c 9 10 B c 10 11 C c 11 12 D c 12 13 A d 13 14 B d 14 15 C d 15 16 D d 16 17 A e 17 18 B e 18 19 C e 19 20 D e 20 ______________________________________________ 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.