Wendy wrote > > Hi all, > > I have a vector, e.g., A = c(10, 20, 30, 40). This 4 numbers have 4! = 24 > different combination. I want to generate a matrix with one combination in > one row, so the output would be > > B = > 10 20 30 40 > 10 40 20 30 > ... > > Does anyone know how to do this easily in R? Thank you very much. > > Wendy >
You want permutations not combinations. library(e1071) permutations(4) * 10 or library(gtools) A <- 10*(1:4) permutations(4,4,A) Berend -- View this message in context: http://r.789695.n4.nabble.com/permutate-elements-in-a-vector-tp4127821p4128227.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.
