Message-ID: <loom.20041104T144526-955@post.gmane.org>
Date: 2004-11-04T13:58:34Z
From: Oskar Villani
Subject: calling a var by name in another var
Hello list,
I'd like to use a variable (or a column of a data frame) by using its name as a
string. E.g.:
Data2003 <- c(150,200,120)
Data2004 <- c(145,211,110)
myvar1 <- "Data2003"
myvar2 <- "Data2004"
# now I'd like do do this
total <- Data2003 + Data2004
# in any way like
# total <- ???(myvar1, myvar2)
# or
# total <- ???(myvar1) + ???(myvar2)
# or something like that
Is there a possibility to do this in R - can't find a solution!
Thanks a lot