Time to go through a tutorial or two! -- This forum cannot replace such self study.
Your query evidences some basic confusion, but ?tapply or the equivalent lapply(split(...)) construct are most likely relevant. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Nov 6, 2017 at 9:40 AM, mviljamaa <mvilja...@kapsi.fi> wrote: > How can I do a for loop that does to a data.frame column what: > > for x in xs: > > does in Python? > > Obviously the data.frame column in question holds "levels". What if the > data.frame is in matrix form? > > BR, Matti > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posti > ng-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
