Try apply(b,2,sort)
best ozgur -- View this message in context: http://r.789695.n4.nabble.com/Order-all-the-columns-ascending-elements-on-a-matrix-or-a-data-frame-tp4632922p4632924.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.