R help - Sep 2004 - debugging an S4 method

Does anyone know how to use the equivalent of debug() on an S4 method? I would
like R to enter the browser not for the generic function, but for the method of
the class that I specify.

Thanks,
David
_____________________________
David Bickel  http://davidbickel.com
Research Scientist
Pioneer Hi-Bred International
Bioinformatics & Exploratory Research
7250 NW 62nd Ave., PO Box 552
Johnston, Iowa 50131-0552
515-334-4739 Tel
515-334-6634 Fax
david.bickel at pioneer.com, bickel at prueba.info



This communication is for use by the intended recipient and ...{{dropped}}

On Fri, 2004-09-03 at 21:54, Bickel, David wrote:
> Does anyone know how to use the equivalent of debug() on an S4 method? I
would like R to enter the browser not for the generic function, but for the
method of the class that I specify.
> 
There's non (that I know) ... you can insert the command
"browser()" in
the middle of your code.

Regards

EJ

"Bickel, David" wrote:
> 
> Does anyone know how to use the equivalent of debug() on an S4 method? I
would like R to enter the browser not for the generic function, but for the
method of the class that I specify.
This is what the trace() function does, if you supply the signatureargument set
to the class or combination of classes for which you want
to examine the selected method.

Typically, a call would be of the form:

trace("myFun", signature="myClass", browser, exit=browser)

which would call the browser on entry to the "myClass" method and
again
before exiting.  See ?trace for details.

(There are a few bug fixes and added features in the upcoming 2.0.0
version).
> 
> Thanks,
> David
> _____________________________
> David Bickel  http://davidbickel.com
> Research Scientist
> Pioneer Hi-Bred International
> Bioinformatics & Exploratory Research
> 7250 NW 62nd Ave., PO Box 552
> Johnston, Iowa 50131-0552
> 515-334-4739 Tel
> 515-334-6634 Fax
> david.bickel at pioneer.com, bickel at prueba.info
> 
> This communication is for use by the intended recipient and ...{{dropped}}
> 
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