R help - Mar 2010 - Obtaining name of data frame used in a function argument

I'm writing a function that can take a data.frame as an argument. I'd
like to be able to obtain the name of the data.frame and print it out
within the function. My current function looks like this:

 

examineIt<-function(x) {

print(nrow(x))

print(x[ceiling(runif(10)*nrow(x)),])

print(summary(x))

}

 

examineIt(myDataFrame)

 

I'd like for the function to also output "myDataFrame". Is there
any way
to do this? I'm running this function several times in a row and need to
be able to identify which data.frame was analyzed.

 

Thanks!

Jason


	[[alternative HTML version deleted]]

Try this:

foo <- function(data)print(deparse(substitute(data)))
foo(DF)

On Thu, Mar 11, 2010 at 2:31 PM, Jason Baucom <jason.baucom at ateb.com>
wrote:
> I'm writing a function that can take a data.frame as an argument.
I'd
> like to be able to obtain the name of the data.frame and print it out
> within the function. My current function looks like this:
>
>
>
> examineIt<-function(x) {
>
> print(nrow(x))
>
> print(x[ceiling(runif(10)*nrow(x)),])
>
> print(summary(x))
>
> }
>
>
>
> examineIt(myDataFrame)
>
>
>
> I'd like for the function to also output "myDataFrame". Is
there any way
> to do this? I'm running this function several times in a row and need
to
> be able to identify which data.frame was analyzed.
>
>
>
> Thanks!
>
> Jason
>
>
> ? ? ? ?[[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O