[R-SIG-Finance] Method dispatch in functions?

[Carlos J. Gil Bellosta]

Look at the UseMethod function. The help for the "print" method, a
heavily overloaded function, can also help.

Regards,

Carlos J. Gil Bellosta
http://www.datanalytics.com

On Thu, 2007-06-28 at 09:05 -0700, John McHenry wrote:
> Hi,
> 
> Could someone point me in the right direction for documentation on the following question? 
> 
> Let's say I have two objects a and b of classes A and B, respectively.
> Now let's say I write a function foo that does something similar to 
> objects of type A and B. Basically I want to overload the function
> in C++ talk, so if I give foo and object of type A something (and this
> is my question) dispatches the call to, say, foo.A, and if I give foo
> and object of type B something dispatches the call to, say, foo.B.
> 
> I want to write foo.A and foo.B. How to I perform the method 
> dispatch? From what I understand there are two ways in R:
> S3 and S4. What is the simple S3 way?
> 
> Thanks!
> 
> Jack.
> 
>        
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