select rows with identical columns from a data frame
* Bert Gunter <thagre.oregba at trar.pbz> [2013-01-19 22:26:46 -0800]: But David W. and Bill Dunlap gave you solutions that also work and are much faster, no?!
Yes, indeed, and I am now using David's solution as it is fast (enough), simple and concise. Thanks a lot to David, Bill, Rui, and arun for their answers (to this question, my many previous questions, and, I hope, my future questions in advance)!
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://americancensorship.org http://palestinefacts.org http://thereligionofpeace.com http://camera.org http://think-israel.org Lisp is a way of life. C is a way of death.