Re: [R] counting number of "G" in "TCGGGGGACAATCGGTAACCCGTCT"

From: Riley, Steve <Steve.Riley_at_pfizer.com>
Date: Tue, 15 Jul 2008 13:28:35 -0400


Daren,

Not sure if it is any easier, but another solution is:

code <- unlist(strsplit("TCGGGGGACAATCGGTAACCCGTCT",""))

length(grep("[G]",code))

Steve

-----Original Message-----
From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Daren Tan
Sent: Tuesday, July 15, 2008 11:28 AM
To: r-help_at_stat.math.ethz.ch
Subject: [R] counting number of "G" in "TCGGGGGACAATCGGTAACCCGTCT"

Any better solution than this ?  

sum(strsplit("TCGGGGGACAATCGGTAACCCGTCT", "")[[1]] == "G")


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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. Received on Tue 15 Jul 2008 - 17:42:03 GMT

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