[R] customizing help()
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Tue Apr 4 14:34:56 CEST 2000
Prof Brian D Ripley <ripley at stats.ox.ac.uk> writes:
> Perhaps that was a bit mean, and the general principle at least may be
> illuminating. The following should work:
>
> my.help <- function(...)
> {
> oc <- match.call()
> oc[[1]] <- as.name("help")
> oc$package <- quote(.packages(all = T))
> oc$lib.loc <- quote(.lib.loc)
> oc$chmhelp <- TRUE
> eval.parent(oc)
> }
Or, if all you want to do is to be able to modify the topic:
my.help <- function(topic){
oc <- substitute(help(topic,package=.packages(all = T),
lib.loc=.lib.loc, chmhelp=TRUE))
eval.parent(oc)
}
Or, probably best:
my.help <- function(topic, package=.packages(all = T),
lib.loc=.lib.loc, chmhelp=TRUE) {
oc <- match.call()
oc[[1]] <- as.name("help")
eval.parent(oc)
}
(The latter variant is the only one where you can override the
defaults for the package, lib.loc, and chmhelp=TRUE)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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