[BioC] How to show the definition of readFastq

[Martin Morgan]

On 05/22/2010 03:46 PM, Peng Yu wrote:
> On Sat, May 22, 2010 at 4:40 PM, Vincent Carey 
> <stvjc at channing.harvard.edu> wrote:
>> getMethods(mname) will retrieve definitions for all methods named 
>> mname getMethod(mname, sig) will retrieve definition for specified 
>> signature
>> 
>> for your query
>> 
>>> getMethod("readFastq", "character")
> 
> Why the following command doesn't work for 'quality'?
> 
>> getMethod('quality', 'ShortReadQ')
> Error in getMethod("quality", "ShortReadQ") : No method found for 
> function "quality" and signature ShortReadQ
>> showMethods('quality')
> Function: quality (package Biostrings) x="ANY" x="FastqQuality" 
> (inherited from: x="ANY") x="ShortReadQ" (inherited from: x="ANY")

see ?getMethod and the difference between selectMethod and getMethod,
conveniently documented on the same page.

     A call to ‘getMethod’ ... makes no use of inheritance.

     The function ‘selectMethod’ ... makes full use of the method
     dispatch mechanism;

Martin

> 
> 


-- 
Martin Morgan
Computational Biology / Fred Hutchinson Cancer Research Center
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