[R] Exact matching with grep

Vladimir Eremeev wl2776 at gmail.com
Mon Feb 5 14:19:33 CET 2007



Mahieux Dimitri wrote:
> 
> I would know if it is possible with grep to match a exact string. For 
> example, I want to match the string "DP2" (and only this) and grep match 
> "DP2BS" too.
> I have sought in the grep help but I didn't find what I want.
> 

grep("DP2", {other arguments}, fixed=TRUE)

?grep says that "fixed is logical. If TRUE, pattern is a string to be
matched as is. Overrides all conflicting arguments."
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