[R] matching character substrings

[Peter Dalgaard BSA]

David White <dwhite at ling.ohio-state.edu> writes:

> Hello,
> 
> Is there a function for searching a string for a given character? For
> example, I have
> transcriptions like
> 
> tsibi
> tSibi
> tibi
> kibi
> 
> I want to search the character object for the presence of 's' or 'S' or
> 'k'.
> 
> I thought perhaps pmatch(c("k", "S", "s"), x) would work for me, but it
> wants to compare from the start of the string and returns NA for "S" and
> "s" because they are not at the head of the string.

grep(), I believe

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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