[R] analyze amino acid sequence (composition)of proteins

[stubben]

Have you checked the package seqinR at CRAN?  It may help.

Also, if you split a string into single characters using strsplit, then 
use table to count characters.


seq<-"ATGAAC"


table(strsplit(seq, ""))

A C G T
3 1 1 1




 > 3. based on "AAABBB",how can i get some statistics of this string 
such as how
 > many letters,how many "A"s in the string.
-- 

-----------------
Chris Stubben

Los Alamos National Lab
BioScience Division
MS M888
Los Alamos, NM 87545