[R] R string functions
Daniel Malter
daniel at umd.edu
Wed Jun 15 23:02:59 CEST 2011
x<-'GTTACTGGTACC'
table(strsplit(x,''))
hth,
Daniel
karena wrote:
>
> Hi,
>
> I have a string "GGGGGGCCCAATCGCAATTCCAATT"
>
> What I want to do is to count the percentage of each letter in the string,
> what string functions can I use to count the number of each letter
> appearing in the string?
>
> For example, the letter "A" appeared 6 times, letter "T" appeared 5 times,
> how can I use a string function to get the these number?
>
> thanks,
>
> karena
>
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