Just multiply by 1: > m <- matrix(c(T,T,F,T),nr=2) > m [,1] [,2] [1,] TRUE FALSE [2,] TRUE TRUE > m*1 [,1] [,2] [1,] 1 0 [2,] 1 1
-----Oprindelig meddelelse----- Fra: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] På vegne af emj83 Sendt: 10. januar 2011 10:17 Til: r-help@r-project.org Emne: [R] Changing a logical matrix into a numeric matrix Hi, I would like to turn my TRUE/FALSE matrix into a 1/0 matrix (i.e. True=1 and False=0) [,1] [,2] [,3] [1,] TRUE FALSE FALSE [2,] TRUE TRUE FALSE [3,] TRUE TRUE TRUE [,1] [,2] [,3] [1,] 1 0 0 [2,] 1 1 0 [3,] 1 1 1 Is there a quick way of doing this without a loop? Thanks Emma -- View this message in context: http://r.789695.n4.nabble.com/Changing-a-logical-matrix-into-a-numeric-matrix-tp3206797p3206797.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. ______________________________________________ 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.