find all functions (including private) in a package

Question

I know ls("package:grid") and find.funs("package:grid") in mvbutils but apparently neither of them can find non-exported functions and methods that are only accessible internally or with ::: or getAnywhere.

I've had to source the files in the /R directory of the source package and use ls() on a clean global environment, but there must be a better way, no?

``get`` and ``getFromNamespace`` seem to call to an ``.internal``, and they need to know a particular name, which doesn't help much. That your read? — Gregg Lind, Jan 01 '12 at 23:14
What is a particular symbol in ``package:grid`` that you don't see listed in ``ls(package:grid)`` but expect to? — Gregg Lind, Jan 01 '12 at 23:18
481 of them, according to the solutions below `setdiff(unclass(lsf.str(envir = asNamespace("grid"), all = T)), ls('package:grid'))` — baptiste, Jan 02 '12 at 00:30

score 34 · Accepted Answer · answered Jan 02 '12 at 00:02

34

you can use asNamespace:

> methods(cbind)
[1] cbind.data.frame cbind.grobGrid   cbind.ts*       

   Non-visible functions are asterisked
> r <- unclass(lsf.str(envir = asNamespace("stats"), all = T))
> r[grep("cbind.ts", r)]
[1] ".cbind.ts" "cbind.ts"

cbind.ts in stats package is invisible but can find in envir = asNamespace("stats").

answered Jan 02 '12 at 00:02

kohske

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Neat, thanks. Both answers work fine, but since only one can be accepted I'll opt for the one-liner. – baptiste Jan 02 '12 at 00:27
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`ls(asNamespace("stats"))` can also give what you want, in a vector. – strboul Aug 03 '19 at 08:55

score 27 · Answer 2 · edited May 23 '17 at 10:31

27

This appears to be something of a perennial here.

If it's this one-liners you're after then this should be a contender (credit @Joshua):

ls(getNamespace("grid"), all.names=TRUE)

(Link is to a question that was asked after the above, but closely related).

As grid is a base package and I haven't yet moved up to R 3... I'm getting 756 functions with Version 2.15.1. vs. 503 from the unclass solution.

edited May 23 '17 at 10:31

Community

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answered Jun 25 '13 at 07:04

dardisco

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`707` vs `778` in recent R; most of the setdiff seems to be internal C routines (`grid:::L_textBounds`) or constants (`grid:::Mb`). – baptiste Jun 25 '13 at 11:12
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Thanks. To have only private functions : `setdiff( ls(getNamespace("ThePackage"), all.names=TRUE), ls("package:ThePackage", all.names=TRUE))` – phili_b Jul 27 '22 at 14:31

find all functions (including private) in a package

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