Hi An example is as follows. Consider the character 3x6 matrix:
a A a T A t G g t T T t A a C C c c For each row I would like to identify the most frequent letter and assign a 1 to it and 0 to the less frequent character. That is, in row 1 the most frequent letter is A (I do not differentiate between capital and non-capital letters), in row 2 T and in row 3 C. After the binary conversion the resulting matrix would look like that: 1 1 1 0 1 0 0 0 1 1 1 1 0 0 1 1 1 1 Any suggestions on how to do that (and I am sure I am not the first one to try this). Thanks Hadassa On Thu, Jan 29, 2009 at 1:50 AM, Jorge Ivan Velez <jorgeivanve...@gmail.com> wrote: > > Hi Hadassa, > Do you have a sample of your data and the output you want? It might be > useful for us in order to provide any help to you. > Regards, > > Jorge > > > On Wed, Jan 28, 2009 at 8:36 AM, Hadassa Brunschwig > <hadassa.brunsch...@mail.huji.ac.il> wrote: >> >> Hi >> >> I am sure there is a function out there already but I couldn't find it. >> I have SNP data, that is, a matrix which contains in each row two >> characters (they are different in each row) and I would like to >> convert this matrix to a binary one according to the minor allele >> frequency. For non-geneticists: I want to have a binary matrix >> for which in each row the 0 stands for the less frequent character >> and 1 for the more frequent character. >> >> Thanks for any suggestions. >> Hadassa >> >> -- >> Hadassa Brunschwig >> PhD Student >> Department of Statistics >> The Hebrew University of Jerusalem >> http://www.stat.huji.ac.il >> >> ______________________________________________ >> 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. > > -- Hadassa Brunschwig PhD Student Department of Statistics The Hebrew University of Jerusalem http://www.stat.huji.ac.il ______________________________________________ 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.
