HI, library(gtools) If you need ?combinations() combinations(2,10,0:1,repeats.allowed=TRUE) # [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] #[1,] 0 0 0 0 0 0 0 0 0 0 #[2,] 0 0 0 0 0 0 0 0 0 1 #[3,] 0 0 0 0 0 0 0 0 1 1 #[4,] 0 0 0 0 0 0 0 1 1 1 #[5,] 0 0 0 0 0 0 1 1 1 1 #[6,] 0 0 0 0 0 1 1 1 1 1 #[7,] 0 0 0 0 1 1 1 1 1 1 #[8,] 0 0 0 1 1 1 1 1 1 1 #[9,] 0 0 1 1 1 1 1 1 1 1 #[10,] 0 1 1 1 1 1 1 1 1 1 #[11,] 1 1 1 1 1 1 1 1 1 1 #or permutations() permutations(2,10,0:1,repeats.allowed=TRUE) A.K.
----- Original Message ----- From: olga30dec <o...@herenstraat.nl> To: r-help@r-project.org Cc: Sent: Thursday, December 20, 2012 7:52 AM Subject: [R] permutation of vectors (1 or 0) Dear all, I have 2 vectors of 10 elements, each of them contains either 0 or 1, like following: > Null<-rep(0,10) > Null [1] 0 0 0 0 0 0 0 0 0 0 > One<-rep(1,10) > One [1] 1 1 1 1 1 1 1 1 1 1 How can I obtain a matrix rows of which can take all possible combinations? e.g. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 Many thanks, Olga -- View this message in context: http://r.789695.n4.nabble.com/permutation-of-vectors-1-or-0-tp4653607.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.
