1. Be forewarned: There may be special approaches built into specific packages that are better than "generalist" approaches like the one I suggest here.
2. The general approach to this sort of thing is with ?outer, if I understand you correctly. 3. Have you read an Introduction to R (ships with every copy of R)? If not, stop and read it before posting further to this list, as it may well contain answers to the questions you wish to pose here. Cheers, Bert On Mon, Sep 10, 2012 at 7:00 AM, priya <jaggari_...@yahoo.co.in> wrote: > Hi , > I am new to R . I am facing difficulty how to make pairwise comparisions. > For example. I have a file which looks like below > a b c d > x 3 6 7 6 > y 7 8 6 5 > z 5 4 7 8 > Here I need to look for the each pairwise comparisions (ab,ac,ad,bc,bd,cd > for each row) > For instance ,looking at first row, for x i need to look for ab values and > take the min(3,6) >5 ,if its satistfies the count should be noted, (now > count is 0), bc values ,min(6,7) >5 ,count for x =1 etc. Likewise all the > comparisons are made and count is noted for x,y,z. > Is there any function to make pairwise comparisions in R or any easy way to > do this? > Any help is greatly appreciated. > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/pairwise-comparisions-tp4642656.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. -- 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 ______________________________________________ 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.
