[R] Generic Function

[Arend P. van der Veen]

Hi,

How to I write a generate function that is "specific to the class of the
argument itself" ?  

For example, I created a data.frame that contains results of an
analysis.  I would like to write a special plot function with the
following usage

plot(data.frame)

I have been looking through the documentation but have not found
anything to show me how to do this.  Any help would be greatly
appreciated.

Thanks in advance,

Arend van der Veen