[R] interactively getting alist of functions for a given package?

[Duncan Murdoch]

On 23/06/2021 8:37 a.m., Greg Minshall wrote:
> hi.
> 
> at the R prompt, i often hit, e.g., "data.table::<TAB>", to try to find
> a routine in a give package.
> 
> however, some packages have a *lot* of functions (i'm looking at *you*,
> ggplot2...), so if i know the routine name starts with, e.g., "set", i
> can filter the returned list of routines by typing
> "data.table::set<TAB>" to get a list of completions.
> 
> but, what if i know the name *contains*, but doesn't start with, "set"?
> 
> is there an obvious way to find this?  something like the unix-y
> : ls /bin | grep -i "set"

Bert gave you an answer that depends on ls().  Whether there's something 
like "set<TAB>" that can return "asset" probably depends on your front 
end, and may be customizable using the facilities described in ?rcompgen.

Duncan Murdoch