Seems like you can do:
library("matchprobes") # on Bioconductor
countbases("TCGGGGGACAATCGGTAACCCGTCT")[,"G"]
The catch is that it only counts A, C, G, and T:s and no other symbols.
/Henrik
On Tue, Jul 15, 2008 at 8:27 AM, Daren Tan <[EMAIL PROTECTED]> wrote:
>
> Any better solution than this ?
>
> sum(strsplit("TCGGGGGACAATCGGTAACCCGTCT", "")[[1]] == "G")
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