Barry Rowlingson wrote: > jim holtman wrote: > >> ?match >> >> >>> X >>> >> [1] 2 6 1 7 4 3 5 >> >>> Y >>> >> [1] 1 1 6 4 6 1 4 1 2 3 6 6 1 2 4 4 5 4 1 7 6 6 4 4 7 1 2 >> >>> match(Y,X) >>> >> [1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1 >> >> > > I quite like this solution: > > > X[X[X[X[X[X[X[X[X[X[X]]]]]]]]]][Y] > [1] 3 3 2 5 2 3 5 3 1 6 2 2 3 1 5 5 7 5 3 4 2 2 5 5 4 3 1 > > but somehow I don't think its general enough... > !!
<Grin> order(X)[Y] is a little more general. Still only works when X is a permutation of 1:N, of course. > Barry > > ______________________________________________ > 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. > -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ 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.
