[R] "return" function

Thomas Lumley tlumley at u.washington.edu
Fri Sep 14 18:27:39 CEST 2001

On Fri, 14 Sep 2001, Chris Marshall wrote:

> I tried to write a function like this
> f1 <- function(){
>    if (condition 1) return
>    if (condition 2) return
>    ...
>    if (condition 3) return
>    do more work
> }
> Where I am using return to exit the function prematurely when I detect
> conditions that warrant it.  Return doesn't seem to work this way.
> How should I do this?

You need to evaluate the function

 if (condition1) return()
 if (condition2) return()

It's the same for all functions -- at the command line, for example, if
you type the name of a function without parentheses you just get the
source code for the function listed.


Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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