[Rd] isGeneric() can return an error

From: Hervé Pagès <hpages_at_fhcrc.org>
Date: Wed, 07 Mar 2012 15:30:51 -0800


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.

-- 
Hervé Pagès

Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M1-B514
P.O. Box 19024
Seattle, WA 98109-1024

E-mail: hpages_at_fhcrc.org
Phone:  (206) 667-5791
Fax:    (206) 667-1319

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