Entering edit mode
Richard Pearson
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390
@richard-pearson-1304
Last seen 10.3 years ago
Is there any way of subsetting a snp.matrix on just one column, and
ending up with a snp.matrix object (rather than a snp object)? Put
another way, is there a way of coercing a snp object to be a
snp.matrix object? The following example might illustrate the sort of
thing I'm trying to do:
> library(snpMatrix)
> data(testdata)
> subsets <- list("none" = NULL, "one" = 1, "two" = 1:2)
> sapply(subsets, function(x) class(Autosomes[,x]))
none one two
"snp.matrix" "snp" "snp.matrix"
I couldn't find anything in the documentation, and am struggling
figuring out how to do this by coercing to a regular matrix and then
back.
Thanks
Richard
--
Richard D. Pearson richard.pearson at
postgrad.manchester.ac.uk
School of Computer Science, http://www.cs.man.ac.uk/~pearsonr
University of Manchester, Tel: +44 161 275 6178
Oxford Road, Mob: +44 7971 221181
Manchester M13 9PL, UK. Fax: +44 161 275 6204