[R] extract parts of a list before symbol

[Iris Simmons]

You probably want `names(test)`.

On Thu, May 25, 2023 at 7:58 PM Evan Cooch <evan.cooch using gmail.com> wrote:

> Suppose I have the following list:
>
> test <- list(a=3,b=5,c=11)
>
> I'm trying to figure out how to extract the characters to the left of
> the equal sign (i.e., I want to extract a list of the variable names, a,
> b and c.
>
> I've tried the permutations I know of involving sub - things like
> sub("\\=.*", "", test), but no matter what I try, sub keeps returning
> (3, 5, 11). In other words, even though I'm trying to extract the
> 'stuff' before the = sign, I seem to be successful only at grabbing the
> stuff after the equal sign.
>
> Pointers to the obvious fix? Thanks...
>
> ______________________________________________
> R-help using 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]]