[R] Passing parameter to a function

Luca Meyer lucam1968 at gmail.com
Mon Dec 20 19:13:42 CET 2010

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?


Luca Meyer
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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