Since t.test takes much more time than parsing loop, I won't hesitate to do a loop on the columns.
--- sata pinal <[EMAIL PROTECTED]> wrote: > I have two matrix with same dimensions. I want to do > t.test using each column from 2 different matrix. > Row n Column names in both matrix are same. > > e.g. > Matrix1 > id VC1 VC2 VC3 > R 1 2 3 > R1 4 5 6 > R3 7 8 9 > > > Matrix2 > id VC1 VC2 VC3 > R 10 11 12 > R1 13 14 15 > R3 16 17 18 > > want to do t.test using each column (with same name > ) using Matrix1 and Matrix2 > > for eg t.test(Matrix1$VC1, Matrix2$VC1)$p.value > > What is the best way to do it. I have dataset with > 4000 columns for each matrix with same row and > column names. > > Thanks a lot. > > --------------------------------- > Be a better sports nut! Let your teams follow you > with Yahoo Mobile. Try it now. > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > ______________________________________________ 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.
