[R] Use and misuse of "update" function for non-models. Any views/recommendations??

[Tobias Verbeke]

Gabor Grothendieck wrote:
> If you write an update.X method where X is the class of your graph
> objects then it will work on
> your graph objects and yet still work on lm, glm, etc.

One example (for non-model objects) is e.g. the update method
for survey design objects (update.survey.design)
in the survey package by Thomas Lumley.

HTH,
Tobias

> On Nov 20, 2007 7:01 AM, Søren Højsgaard <Soren.Hojsgaard at agrsci.dk> wrote:
>> Dear all,
>>
>> I wonder if it is "bad style" (or something worse) to create an "update" function which does not work on model objects of the lm, glm etc. type. Specifically, I have some graph objects (graphs as mathematical objects, not as displays) which I want to alter and for that purpose I thought of writing an update function. Would doing so violate a "deeper philosophy" in the R system or have other unfortunate consequences. If so, I'm happy to hear other suggestions...
>>
>> Regards
>> Søren

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