[R] determining if a function exists in a particular package

[Erin Hodgess]

I found the solution in an old post:

It's
lsf.str("package:ts")

for functions.

Cool!

On Fri, Apr 27, 2012 at 4:12 PM, Mark Leeds <markleeds2 at gmail.com> wrote:
> Hi Erin: I don't know how to do it programatically but it might be quicker
> to just
> go to the vignette and click on it. All the functions should be in the right
> column of
> the pdf. Of course, you may have reason for needing it programatically in
> which
> case, my apologies for the noise !!!!!
>
> On Fri, Apr 27, 2012 at 5:07 PM, Erin Hodgess <erinm.hodgess at gmail.com>
> wrote:
>>
>> Hello R People:
>>
>> Is there a way to determine if a function exists in a particular
>> package, please?
>>
>> I looked at exists and objects, but they seem to refer to an
>> environment rather than a package.
>>
>> I was thinking of something like:
>>
>> ifelse(exists(functiona) in MASS, print(1:10), print(5))
>>
>> Thanks,
>> Erin
>>
>>
>> --
>> Erin Hodgess
>> Associate Professor
>> Department of Computer and Mathematical Sciences
>> University of Houston - Downtown
>> mailto: erinm.hodgess at gmail.com
>>
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>> and provide commented, minimal, self-contained, reproducible code.
>
>



-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com