[R] Function argument as string

[Erik Iverson]

Vishwanath Sindagi wrote:
> Hi,
> 
> Suppose a write a function
> 
> a_fn<-function(arg1)
> {
> 
>     return(table(arg1));
> }
> 
> I have a column called AGE. Now I call the function c = a_fn(AGE);
> 
> When a_fn is called, AGE is received in arg1. My question is, how do I
> access  the actual name of the argument arg1? i.e, inside the
> function, i need to know that the actual name of arg1 is "AGE" in this
> case.

Is this what you mean ?

fun <- function(x) {
   as.character(substitute(x))
}

 > fun(age)
[1] "age"