[Rd] plot.function documentation/export?
Uwe Ligges
ligges at statistik.tu-dortmund.de
Mon Jul 25 18:55:11 CEST 2011
On 25.07.2011 17:45, Ben Bolker wrote:
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> 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")
>
>
> [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
>
> Any ideas?
>
>
> Ben Bolker
>
>
>
>> sessionInfo()
> R version 2.13.1 (2011-07-08)
> Platform: i486-pc-linux-gnu (32-bit)
>
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