I have a vector: alleles.present<-c("D3", "D16", ... )
The alleles present changes given the case I'm dealing with - i.e. either all of the alleles I use for my calculations are present, or some of them. Depending on what alleles are present, I need to make matrices and do calculations on those alleles present and completely disregard any formula or other use of the alleles not present. I'm trying to figure out the best way to do this. Basically I'm trying to do if() commands (with no success so far) to allow me to query the alleles.present for the presence of each allele I use and then let dictate which formula to use etc... Does anyone have a good way to do this? I've been fiddling with grep() etc... but I can't get it to do what I need!! Very frustrating. Thanks very much -- Gareth Campbell PhD Candidate The University of Auckland P +649 815 3670 M +6421 256 3511 E [EMAIL PROTECTED] [EMAIL PROTECTED] [[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.