[R] how to override/replace a function in a package namespace?

[Michael Friendly]

Thanks, Gabor

For the record, what I was looking for is accomplished by
 > source("c:/R/mosaics/strucplot-MF.R")
 > assignInNamespace("strucplot",strucplot, ns="vcd")

-Michael

Gabor Grothendieck wrote:
> Check out:
>
> ?assignInNamespace
>
>
> On Sun, Aug 17, 2008 at 12:42 PM, Michael Friendly <friendly at yorku.ca> wrote:
>   
>> I'm trying to test an extension of mosaic() from the vcd package that
>> requires a change to the
>> basic strucplot() function from that package.  I want to test my change by
>> sourcing the
>> replacement function into my R session.
>>
>> But when I do that,
>> source("c:/R/mosaics/strucplot-MF.R")
>> and run my extension, it is apparent that it is vcd:::strucplot that is
>> eventually called, not
>> my replacement.  Thus, I'm looking for something with the semantics and
>> effect of
>> source("c:/R/mosaics/strucplot-MF.R", namespace="vcd")
>> that would replace the package version with my testing one.
>>
>> This question may have come up before, but searching the usual sources
>> hasn't turned up anything
>> useful.
>>
>> -Michael
>>
>> --
>> Michael Friendly     Email: friendly AT yorku DOT ca Professor, Psychology
>> Dept.
>> York University      Voice: 416 736-5115 x66249 Fax: 416 736-5814
>> 4700 Keele Street    http://www.math.yorku.ca/SCS/friendly.html
>> Toronto, ONT  M3J 1P3 CANADA
>>
>> ______________________________________________
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>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>     


-- 
Michael Friendly     Email: friendly AT yorku DOT ca 
Professor, Psychology Dept.
York University      Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele Street    http://www.math.yorku.ca/SCS/friendly.html
Toronto, ONT  M3J 1P3 CANADA