[Rd] Number of functions, data sets, ..., in a package?

Gabor Grothendieck ggrothendieck at gmail.com
Thu Jul 9 16:45:52 CEST 2009

On Thu, Jul 9, 2009 at 10:33 AM, spencerg<spencer.graves at prodsyse.com> wrote:
> Hello:
>     How can one get the number of functions and data sets in a package?
>     I've written a function "PackageSum2" to get an extended package summary
> for an installed package.  I get much of what I want from the object
> returned by "help(package=pkgName)".  For example, "help(pac=...)$info[[1]]"
> is a character vector giving author, maintainer, date built, etc.
>  "help(pac=...)$info[[2]]" is a character vector with at least one row for
> each help page;  I can get the number of help pages by subtracting the
> number starting with blank (" ") from the length.  And
> "help(pac=...)$info[[3]]" is a character matrix describing the vignettes.

Also look at ?packageDescription

>     Is there a reasonably easy way to get numbers of (a) functions and (b)
> data sets in the package?
>     I want this for a the next version of "PackageSum2" in the "RSiteSearch"
> package.  Based partly on previous input from this list, the package is
> being renamed to "sos" with the primary "RSiteSearch.function" function
> being renamed to "findFn".  You can install the current development version
> via 'install.packages("sos", repos="http://R-Forge.R-project.org")'.

Check out the source of codoc in the tools package.

>     Thanks,
>     Spencer
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