[R] How to link two R packages together

[Joshua Wiley]

On Wed, Aug 1, 2012 at 10:28 PM, Bert Gunter <gunter.berton at gene.com> wrote:
> On Wed, Aug 1, 2012 at 6:45 PM, Michael Weylandt
> <michael.weylandt at gmail.com> wrote:
>> Isn't this what package dependencies are for?
>
> No. It's what package imports are for (preferably).
> As always, the OP should RTFM -- in this case the one to which you
> refer on the next line, especially the NAMESPACES section.

But note that the original question included, "when I load one package
using 'library("PKG1")', PKG2 can be loaded at the same." which
imports does not exactly do. They become available to the package, but
not to the user, so if you really need both packages loaded to the
search path, then you need a dependency, not imports.

Cheers,

Josh

>
> -- Bert
>
>>
>> See the description of the DESCRIPTION file in Writing R Extensions
>>
>> Michael
>>
>> On Aug 1, 2012, at 5:27 PM, xuan zhao <xuan.zhao at sentrana.com> wrote:
>>
>>> Hi,
>>> I have built two R packages. One of them (PKG1) needs to use the functions
>>> of the other package (PKG2).
>>> So I need to link these two packages together, so that the functions of PKG2
>>> can be available to PKG1. And when I load one package using
>>> 'library("PKG1")', PKG2 can be loaded at the same.
>>> Any ideas welcome.
>>>
>>>
>>>
>>>
>>> --
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>>>
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>>
>> ______________________________________________
>> R-help at r-project.org mailing list
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>> and provide commented, minimal, self-contained, reproducible code.
>
>
>
> --
>
> Bert Gunter
> Genentech Nonclinical Biostatistics
>
> Internal Contact Info:
> Phone: 467-7374
> Website:
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>
> ______________________________________________
> R-help at r-project.org 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.



-- 
Joshua Wiley
Ph.D. Student, Health Psychology
Programmer Analyst II, Statistical Consulting Group
University of California, Los Angeles
https://joshuawiley.com/