[R] Function returning multiple objects but printing only one

[Adams, Jean]

Daniel,

I'm not sure if this is what you're after, but you could include a print()
call in your function.  For example:

myfun <- function(x) {
  m1 <- min(x)
  m2 <- mean(x)
  m3 <- max(x)
  out <- list(m1, m2, m3)
  print(out[[2]])
  return(out)
}

result <- myfun(1:10)

​Jean
​

On Mon, Jul 13, 2015 at 4:06 PM, Daniel Caro <dcarov at gmail.com> wrote:

> Hello,
>
> Sorry if this has already been addressed before but I could not find any
> helpful references.
>
> I would like to create a function that outputs a single element of a list
> but stores all elements, similar to  'lm' and many other functions. There
> are several answers on how to return multiple objects with lists, for
> example:
>
>
> http://r.789695.n4.nabble.com/How-to-return-multiple-values-in-a-function-td858528.html
>
>
> http://stackoverflow.com/questions/8936099/returning-multiple-objects-in-an-r-function
>
> But the examples show how to print multiple outputs, such as
>
> functionReturningTwoValues <- function() {return(list(first=1, second=2))}
> functionReturningTwoValues()
>
> And I only want the function to print a single element from the list but
> still store the other elements such that they can be retrieved with
> functionReturningTwoValues$first, for example. My function produces
> bootstrap coefficients so clearly I don't want to print the bootstrap
> output but I do want users to be able to access it.
>
> Many thanks,
> Daniel
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]