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vegindex
2007 Apr 25
1
regular expressions with grep() and negative indexing
Dear R-helpers,
Does anyone know how to use regular expressions to return vector elements
that don't contain a word? For instance, if I have a vector
x <- c("seal.0","seal.1-exclude")
I'd like to get back the elements which do not contain the word "exclude",
using something like (I know this doesn't work) but:
grep("[^(exclude)]",x)
I