[R] Search for a text string and write position related data to a file

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Thu Oct 2 22:56:26 CEST 2003


"Karin & Gerard Preusting" <Karin at preusting.fol.nl> writes:

> Dear all,
> 
> I just started using R today. What I need to do is find a text
> string in a (large) text file and than copy the some position
> related lines (or text) to an other text file. Is this possible with
> R?

It's hardly a typical R application, but it can be done using a fairly
straightforward while loop. See documentation for readLines,
writeLines, and grep. (On Unix-like systems, tools like awk or perl
will probably get the job done more quickly).

-- 
   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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