[R] help in removal of fixed pattern

arunkumar1111 akpbond007 at gmail.com
Sat Dec 3 08:06:50 CET 2011


I have column name as given below

If the variable is in log(X1 + 1) pattern it should be removed and i need
only X1

log(x1 + 1) 
log(X3 +1)

Expected Output X1 X2 X3

Please help me

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