Re: [Rd] plot.function documentation/export?

From: Uwe Ligges <ligges_at_statistik.tu-dortmund.de>
Date: Tue, 26 Jul 2011 20:33:16 +0200

Now I see the difference: I was using R-devel and that worked as you expected.

Best,
Uwe Ligges

On 25.07.2011 19:01, Ben Bolker wrote:
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> On 07/25/2011 12:55 PM, Uwe Ligges wrote:
>>
>>
>> On 25.07.2011 17:45, Ben Bolker wrote:
>>
>> I recently suggested to someone (
>> http://stackoverflow.com/questions/6789055/r-inconsistency-why-add-t-sometimes-works-and-sometimes-not-in-the-plot-functi/6789098#6789098
>>
>> ) that the should use methods("plot") or methods(class="function") to
>> locate the documentation on the plot method for objects of class
>> "function", but they pointed out that these don't actually work.
>>
>> I can't figure out why not: src/library/graphics/man/curve.Rd contains
>> the line
>>
>> \method{plot}{function}(x, y = 0, to = 1, from = y, xlim = NULL, ylab =
>> NULL, \dots)
>>
>> and src/library/graphics/DESCRIPTION contains
>>
>>
>>> you mean the following line is in NAMESPACE rather than DESCRIPTION.
>>
>> S3method(plot, "function")
>
> Yes, sorry.
>
>>
>>
>> [presumably the extra quotes are in there because function is a
>> reserved word?]
>>
>> I'm not sure where else the information should be. Searching around in
>> the code tree for information on tail.function (which is listed in the
>> methods:
>>
>>>>> methods(class="function")
>> [1] as.list.function head.function* print.function tail.function*
>>
>> I find the same S3method syntax, so I guess the quotation marks aren't
>> the problem ...
>>
>>> ?tail.function
>>
>>> tells us this one is from package "utils" and you can search for this
>>> function in the sources of the utils package
>>
>>> Or you could ask for
>>
>> getAnywhere("tail.function")
>>
>>> and R tells you
>>
>>> A single object matching tail.function was found
>>> It was found in the following places
>>> registered S3 method for tail from namespace utils
>>> namespace:utils
>>> [.....]
>>
>>> Best wishes,
>>> Uwe
>>
>>
>>
>
> Sorry, I didn't frame my question very clearly. I can find
> "tail.function" just fine, or I could if I wanted to. What I don't
> know is why methods("plot") and methods(class="function") don't list
> "plot.function" even though its documentation and setup seem to be
> similar to "tail.function", which *does* show up in
> methods(class="function") ...
>
> cheers
> Ben Bolker
>
>
> =========
>
> No plot.function listing in either of these ...
>
>> library("graphics")
>> methods("plot")
> [1] plot.acf* plot.data.frame* plot.decomposed.ts*
> [4] plot.default plot.dendrogram* plot.density
> [7] plot.ecdf plot.factor* plot.formula*
> [10] plot.hclust* plot.histogram* plot.HoltWinters*
> [13] plot.isoreg* plot.lm plot.medpolish*
> [16] plot.mlm plot.ppr* plot.prcomp*
> [19] plot.princomp* plot.profile.nls* plot.spec
> [22] plot.spec.coherency plot.spec.phase plot.stepfun
> [25] plot.stl* plot.table* plot.ts
> [28] plot.tskernel* plot.TukeyHSD
>
> Non-visible functions are asterisked
>> methods(class="function")
> [1] as.list.function head.function* print.function tail.function*
>
> Non-visible functions are asterisked
>
>
>
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