On 9/27/07, Rolf Turner <[EMAIL PROTECTED]> wrote:
>
> On 28/09/2007, at 6:52 AM, Tim Bergsma wrote:
>
> > Suppose I want to delete everything in my working directory that is
> > not
> > a function. It seems that
> >
> > sapply(ls(),is.function)
> >
> > always returns FALSE, because ls() returns objects of mode character.
> > How do I evaluate is.function(), not on a character string, but on the
> > object that character string represents?
>
> sapply(ls(),function(x){is.function(get(x))})A conceptually simpler alternative is sapply(ls(), exists, mode = "function", inherits = FALSE) -Deepayan ______________________________________________ [email protected] mailing list 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.
