It's difficult to do by hand, but it's not too hard to automate - take
a look at https://github.com/hadley/roxygen3/blob/master/R/auto-imports.r.
It's part of roxygen3, but the code is relatively straighforward and
doesn't depend on much else in the package.
Hadley
On Sat, Sep 7, 2013 at 7:48 AM,
I also second Peter's proposal. I think that it is particularly helpful to
save time for maintainers of packages that were developed a longer time ago.
When writing new packages, it is relatively easy to keep track of which
functions from which packages need to be imported; when maintaining older
c
