Paulo Grahl <pgrahl <at> gmail.com> writes:
>
> Dear list members,
>
> Does anyone know how to use rm() to remove only variables but not
> declared functions from the environment ?
> I understand I could name all the functions with, let's say
> "f_something", make sure that all variables do not start with "f_" and
> then remove all BUT objects starting with "f_".
> However, I have already defined all the functions and it would be
> troublesome to change all of them to a new name.
>
> a <- 1
> b <- 2
> d <- function(x) { x^2 }
> objs <- ls()
> objclasses <- sapply(objs,function(x) class(get(x)))
> objclasses
a b d
"numeric" "numeric" "function"
> rm(list=objs[objclasses!="function"])
> ls()
[1] "d" "objclasses" "objs"
>
(objclasses and objs are left over, but
a and b have been deleted)
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