[Rd] New generic functions in "R base" {was `truncate'}
kjetil halvorsen
kjetilh@umsanet.edu.bo
Wed, 23 May 2001 15:39:09 -0400
Gregory Warnes wrote:
>
> 1) What are the issues with making _existing_ functions in base into
> generics?
>
> EG, I've recently become annoyed that plot() is a generic which can be
> applied to a formula:
>
> plot( outcome ~ predictor)
>
> but functions like points, lowess, etc are not generic or don't have
> methods defined for formulae. I've created a points.formula() and a
> generic lowess(), lowess.default(), and lowess.formula().
lowess is supposed to handle formulas and will do so when the
scope error in xy.coords is corrected.
Kjetil Halvorsen
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