On 19/01/2009, at 10:44 AM, Gabor Grothendieck wrote:
Well, that's why it was only provided when you insisted. This is
not what regexp's are good at.
On Sun, Jan 18, 2009 at 4:35 PM, Rau, Roland <r...@demogr.mpg.de>
wrote:
Thanks! (I have to admit, though, that I expected something simple)
It may not be what regexp's are good at, but the grep command in unix/
linux
does what is required *very* simply via the ``-v'' flag. I
conjecture that
it would not be difficult to add an argument with similar impact to the
grep() function in R.
cheers,
Rolf Turner
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