[R] How/When to use :: and :::?

[Wacek Kusnierczyk]

ctu at bigred.unl.edu wrote:
> Hi Dear R users,
>
> I check help(Syntax) but I still don't know how to use :: and ::: and
> when I should use it.  Can anyone give me a answer?
>
> Thanks in advance
>
?`::`

vQ