[R] Pattern match

[Milan Bouchet-Valat]

Le mercredi 20 mars 2013 à 21:58 +0530, Christofer Bogaso a écrit :
> Hello again, in the help page of grep() function, it is written that
> 
> pattern:
> 
>  character string containing a regular expression (or character string
> for fixed = TRUE) to be matched in the given character vector. Coerced
> by as.character to a character string if possible. If a character
> vector of length 2 or more is supplied, the first element is used with
> a warning. Missing values are allowed except for regexpr and gregexpr.
> 
> But I have a vetcor of length '(> 1)' for the pattern match, and I
> need to have approximate match.
> 
> Is there any function similar to grep() to handle that?
Could you provide a reproducible example? One common solution is to
create pattern like "A|B" to match "A" or "B".


Regards

> Thanks for your help.
> 
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