Thank you both for your answers.

On Fri, Feb 26, 2010 at 7:58 PM, Duncan Murdoch <murdoch@stats.uwo.ca>wrote:

>
> You aren't seeing the print method, you are seeing a newly created print
> generic function.  As Uwe mentioned, print() is not an S4 generic, so when
> you create your print method, a new S4 generic also gets created.  You
> should be using show(), which will be called by print() when necessary.
>
> When you say "clear the memory", I'm not sure what you have in mind, but S4
> methods are not stored in your workspace, so rm(list=ls()) won't delete
> them.  You need removeMethod() to get rid of a method.
>
> Duncan Murdoch
>

What I meant with "clear the memory" is exactly rm(list=ls()). I use the
same analysis on different rather big datasets, so I have to make some space
once in a while. To lose the "print" generic (thx for the correction) every
time I considered highly inconvenient. I'll use the show method, thank you
both for the tip.

Do I understand it right that every generic I define in a normal scriptfile
is saved in the workspace, and thus can be removed with rm() ?

Cheers
Joris

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