Duncan Murdoch <[EMAIL PROTECTED]> writes:
[snip]
> So I tried to explicitly force it:
>
> > g <- function( H, prevEnv = NULL) {
> + if (!is.null(prevEnv)) H <- prevEnv$H
> + force(H)
> + return(environment(NULL))
> + }
>
> but this still doesn't work:
>
> > env <- g( function(x)
A followup: doing an assignment of the value works even after the
return:
> f
function( H ) {
cat('Evaluate H to get \n')
print(H)
return(environment())
}
> env <- f( function(x) x^2 )
Evaluate H to get
function(x) x^2
> env$H
> env$H(1)
Error: attempt to apply non-function
> H <- e
On Tue, 8 Mar 2005 17:44:41 + (GMT), Prof Brian Ripley
<[EMAIL PROTECTED]> wrote :
>The following note in ?force may help
>
>Note:
>
> 'force' does not force the evaluation of promises.
>
>It is there because people have been confused before.
Yes, but it also says that it "forces the eva
The following note in ?force may help
Note:
'force' does not force the evaluation of promises.
It is there because people have been confused before.
On Tue, 8 Mar 2005, Duncan Murdoch wrote:
I'm working on a function that does adaptive sampling, and I thought
it would be handy to return the fu
