[R] avoid s3 methods

[Uwe Ligges]

On 18.10.2011 12:23, Nicola Sturaro Sommacal wrote:
> Thank you very much for your reply. You confirm what I suppose.
>
> Can you give me a reference of that you wrote? I need it for a report.
>
> Thanks again.
>
>
> PS: sorry Uwe for the previous reply, not to the list.


... where I replied it is in the manual "R Labguage Definition".

Uwe

>
> 2011/10/18 Uwe Ligges<ligges at statistik.tu-dortmund.de>
>
>>
>>
>> On 18.10.2011 10:37, Nicola Sturaro Sommacal wrote:
>>
>>> Hello everybody.
>>>
>>> My issue arise when I build a package with my functions. This package is
>>> for
>>> personal purposes only and it will not submitted to CRAN.
>>>
>>> Anyway, this may be an opportunity for myself to clear the S3 methods
>>> concept. I read the R manual and some books about R programming but they
>>> are
>>> usually S4 oriented.
>>>
>>> I call a function plot.days(). When I check the package I obtain some
>>> inconsistencies because this function is a method of the plot() function
>>> and
>>> it requires at least the same arguments.
>>>
>>> Since an object call days doesn't exist, I am not interested to access my
>>> function using plot() but I would like to name it plot.days().
>>>
>>> Is there anyway to declare that my plot.days() function is not a method
>>> for
>>> the plot() function?
>>>
>>> I hope the question is clear, despite methods are a new world for me.
>>>
>>
>>
>> The S3 method definition happens only by the name of the method:
>> "NameOfTheGeneric.Class". Hence plot.days is by definition a method for the
>> "plot" generic for objects of class "days". If you want a function that is
>> not such a method, rename it. plot_days will do, for example.
>>
>> Uwe Ligges
>>
>>
>>
>>   Thank you very much.
>>>
>>> Regards,
>>> Nicola
>>>
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>>>
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>>
>
> 	[[alternative HTML version deleted]]
>
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