[R] Memory management in R

[Lorenzo Isella]

> I already offered the Biostrings package. It provides more robust
> methods for string matching than does grepl. Is there a reason that you
> choose not to?
>

Indeed that is the way I should go for and I have installed the package 
after some struggling. Since biostring is a fairly complex package and I 
need only a way to check if a certain string A is a subset of string B, 
do you know the biostring functions to achieve this?
I see a lot of methods for biological (DNA, RNA) sequences, and they may 
not apply to my series (which are definitely not from biology).
Cheers

Lorenzo