R help - Jun 2000 - Undocumented functions (was: Dates on Graphics)

At 19:48 07/06/00 +0200, Friedrich Leisch wrote:
>>>>>> On Wed, 7 Jun 2000 09:41:23 -0700 (PDT),
>>>>>> Thomas Lumley (TL) wrote:
>
>
>TL> Some of this can be done with apropos(), but I don't think you
can
keyword
>TL> search from inside R. It would be nice.
>
>
>help.search() might do what you want ...
>
>.f
Yes, but help.search() looks in the documented functions, whereas Yves's
concern was about the functions which are not documented. apropos() is fine
apparently, providing the corresponding library is loaded:
> apropos("date")
[1] "date"            "update"         
"update.default"  "update.formula"
[5] "update.packages"
> library(date)
> apropos("date")
 [1] "Math.date"          "Ops.date"          
"Summary.date"
 [4] "[.date"             "[[.date"           
"as.character.date"
 [7] "as.data.frame.date" "as.date"           
"as.vector.date"
[10] "date.ddmmmyy"       "date.mdy"          
"date.mmddyy"
[13] "date.mmddyyyy"      "is.date"           
"is.na.date"
[16] "mdy.date"           "plot.date"         
"print.date"
[19] "summary.date"       "date"              
"update"
[22] "update.default"     "update.formula"    
"update.packages"   
> ?plot.date
Error in help(plot.date) : No documentation for `plot.date'

Hence, plot.date() is effectively here but not documented. AFAIK, the only
solution to know how to use the function is to open the file
RHOME/library/date/R, and search for:

plot.date <- function(x, y, ..., xaxt, xlab, ylab) {


Emmanuel Paradis
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Emmanuel Paradis <paradis at isem.univ-montp2.fr> writes:
> Hence, plot.date() is effectively here but not documented. AFAIK, the only
> solution to know how to use the function is to open the file
> RHOME/library/date/R, and search for:
> 
> plot.date <- function(x, y, ..., xaxt, xlab, ylab) {
Recent versions of R have a function called undoc(), which finds
functions without documentation, e.g.
> undoc('tcltk')
[1] ".Last.lib"      "tkplace.slaves"
"tktitle<-"

This is mainly intended for package writers who can use it to find
functions that need to have documentation written. (And, oops, we seem
to have a couple of missing \alias{}s there...)

-- 
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