select rows with identical columns from a data frame
But David W. and Bill Dunlap gave you solutions that also work and are much faster, no?! -- Bert
On Sat, Jan 19, 2013 at 9:41 PM, Sam Steingold <sds at gnu.org> wrote:
* Rui Barradas <ehvconeenqnf at fncb.cg> [2013-01-18 21:02:20 +0000]: Try the following. complete.cases(f) & apply(f, 1, function(x) all(x == x[1]))
thanks, this works, but is horribly slow (dim(f) is 766,950x2) -- Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000 http://www.childpsy.net/ http://truepeace.org http://palestinefacts.org http://thereligionofpeace.com http://honestreporting.com http://ffii.org usually: can't pay ==> don't buy. software: can't buy ==> don't pay
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Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm