[Rd] isGeneric() can return an error

Hervé Pagès hpages at fhcrc.org
Fri Mar 9 06:31:46 CET 2012


On 03/08/2012 03:41 PM, John Chambers wrote:
> Bug. Should be fixed (rev 58642) in r-devel and R 2.15.0 alpha.

Thank you.

H.

>
> Thanks.
>
> On 3/7/12 3:30 PM, Hervé Pagès wrote:
>> Hi,
>>
>> I wonder if this is a feature or a bug:
>>
>> > isGeneric("&&")
>> Error in genericForPrimitive(f) :
>> methods may not be defined for primitive function ‘&&’ in this version
>> of R
>> > isGeneric(":")
>> Error in genericForPrimitive(f) :
>> methods may not be defined for primitive function ‘:’ in this version
>> of R
>>
>> According to the man page:
>>
>> ‘isGeneric’: Is there a function named ‘f’, and if so, is it a
>> generic?
>>
>> So it sounds like it should be a YES or NO answer.
>>
>> In any case the error message is confusing: it suggests that I'm trying
>> to define methods for "&&", but I'm not.
>>
>> This is with R 2.13, R 2.14 and R 2.15.0 alpha.
>>
>> Thanks,
>> H.
>>
>
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-- 
Hervé Pagès

Program in Computational Biology
Division of Public Health Sciences
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