[R] exact pattern match in grep for column headers

1Rnwb sbpurohit at gmail.com
Thu Oct 21 18:17:44 CEST 2010


my question is exactly as described in this post
http://tolstoy.newcastle.edu.au/R/e2/help/07/02/9812.html
i am doing the pattern search using a vector 'vars[vi]' where i cannot use
'^vars[vi]$' for a exact pattern match
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