[Rd] New generic functions in "R base" {was `truncate'}
Peter Dalgaard BSA
p.dalgaard@biostat.ku.dk
23 May 2001 21:12:45 +0200
Gregory Warnes <warnes@ci.tuwien.ac.at> writes:
> 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().
>
> Are there any problems in replacing the current points() with a generic
> function, provided that the default function does the same thing as the
> original function?
Ummm, points.formula has been in base R since february 2000... slipped
in between 0.99.0 and 1.0.0 apparently.
Also note that loess() (with the correct spelling, in the modreg
library) does have a formula interface.
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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