[R] Turning strings into expressions
alexandersokol at ofir.dk
Thu Nov 25 14:09:14 CET 2004
I am running R 1.9.1 om Windows 2000 SP4. My problem is as follows:
Say I have a dataframe my.frame with column names A and B. I have a string,
 "A==1 & B==2"
And I would like to retrieve the subset corresponding to my.string, that is,
from my.frame and my.string I would like to get the result of
subset(my.frame,A==1 & B==2)
So I need to find a way to convert
"A==1 & B==2"
A==1 & B==2
I at first hoped that get() could do the job, but this does not work. Does
anyone know how to do this?
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