Is this what you want? f <- function (x, m) combn(x + m - 1, m) - seq_len(m) + 1
Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf > Of Konstantin Tretiakov > Sent: Thursday, November 07, 2013 5:38 AM > To: r-help@r-project.org > Subject: [R] all combinations with replacement not ordered > > Hello! > > I need to obtain all possible combinations with replacement when order is > not important. > E.g. I have a population x{1,2,3}. > So I can get (choose(3+3-1,3)=) 10 combinations from this population with > 'size=3'. > How can I get a list of all that combinations? > > I have tried 'expand.grid()' and managed to get only samples where order is > important. > 'combn()' gave me samples without replacement. > > Best regards, > Konstantin Tretyakov. > > [[alternative HTML version deleted]] > > ______________________________________________ > 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.
