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graycol
2004 Sep 01
3
coercing a string naming to a variable name and return value
Hi all,
I haven't been able to find how to assess a variable who's name is
constructed with paste. The problem is following: In a data frame, there are
12 columns whose title vary only by a digit, all other part being equal. I
would like to compute a operation on a subset these variables and parse them
in turn.
the data frame "basin.param" contains columns called ratio1,