On Thursday 15 November 2007, [EMAIL PROTECTED] wrote: > Actually, (now that I know about combn), a better way is > > t(matrix(set[combn(7,2)], nrow = 2))
Indeed, or to avoid transposing: matrix(set[combn(7,2)], ncol = 2, byrow=T) Adrian -- Adrian Dusa Romanian Social Data Archive 1, Schitu Magureanu Bd 050025 Bucharest sector 5 Romania Tel./Fax: +40 21 3126618 \ +40 21 3120210 / int.101 ______________________________________________ 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.