On Wed, Jul 1, 2009 at 3:02 AM, gug <guygr...@netvigator.com> wrote:
>
> sapply(ls(), function(x) object.size(get(x)))
> -This lists all objects with the memory each is using (I should be honest
> and say that, never having used "sapply" before, I don't truly understand
> the syntax of this, but it seems to work).
>
In this particular case (getting the size of each object in the global
environment) you can also do:
eapply(.GlobalEnv, object.size)
# or eapply(.GlobalEnv, object.size, all.names=TRUE) , see ?eapply
Eapply applies a function (here:object.size) to every object in an
environment; with `sapply` you first use ls() to get the names of all
objects as a character vector, and then you need `get` because you probably
want the sizes of objects themselves, not their names -- so it can't be
just sapply(ls(), object.size) .
Regards,
Kenn
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