Number of functions, data sets, ..., in a package?

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.

? ? 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")'.

? ? Thanks,
? ? Spencer

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