I am trying to pass a couple of variable names to a xtabs formula:
> tab <- function(x,y){
xtabs(time~x+y, data=D)
}
But when I run:
> tab(A,B)
I get:
Error in eval(expr, envir, enclos) : object "A" not found
I am quite sure that there is some easy way out, but I have tried with
different combinations of deparse(), substitute(), eval(), etc without success,
can someone help?
Thanks,
Luca
Luca Meyer
www.lucameyer.com
IBM SPSS Statistics release 19.0.0
R version 2.12.1 (2010-12-16)
Mac OS X 10.6.5 (10H574) - kernel Darwin 10.5.0
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