[R] how to count "A", "C", "T", "G" in each row in a big data.frame?

Suzen, Mehmet msuzen at gmail.com
Thu Jan 10 09:50:10 CET 2013

On 10 January 2013 01:04, Yao He <yao.h.1988 at gmail.com> wrote:
> In fact I want to calculate the gene frequency of each SNP.

Why don't you use bioconductor for your analysis instead of trying to
develop by your own? For example:


For example alphabetFrequency function in the ShortRead package. I am
sure you can handle I/O
somehow to interface with available tools in bioconductor.

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