[R] problem with pattern matching
xuancj at yahoo.com
Tue Aug 4 17:00:30 CEST 2009
I got a problem with pattern matching using grep. I extracted a list of
characters from a data frame, and I tried to match this list of characters
to a column from another data frame. In return, I got only one match, but
there should be far more matches. Any ideas what has gone wrong?
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