mogra wrote: > Hi Thanks for the reply. > > I implemented your solution to my problem but ... > > For some of my column there is not enough data to do t-test so it gives me > error and stops the for loop, is any graceful way to check for error msg and > say ok if there is no $p.value continue to the next column
See ?try Uwe Ligges > Once again thx for help. > > > > sata pinal wrote: >> I have two matrix with same dimensions. I want to do t.test using each >> column from 2 different matrix. >> Row n Column names in both matrix are same. >> >> e.g. >> Matrix1 >> id VC1 VC2 VC3 >> R 1 2 3 >> R1 4 5 6 >> R3 7 8 9 >> >> >> Matrix2 >> id VC1 VC2 VC3 >> R 10 11 12 >> R1 13 14 15 >> R3 16 17 18 >> >> want to do t.test using each column (with same name ) using Matrix1 and >> Matrix2 >> >> for eg t.test(Matrix1$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.
