Big, complex, well-structured .R file for demonstration?

On Tue, Jun 11, 2013 at 11:06 AM, Thorsten Jolitz <tjolitz at gmail.com> wrote:

Hi List,

I'm looking for a rather big, but well structured R file that contains
as much of R language features as possible (i.e. that uses a lot of the
functionality described in the 'R Reference Card' and, if possible, S4
classes too).

http://cran.r-project.org/web/packages/

I might start with MASS, though I have no idea what "well structured"
means to you.

I want to check some code I wrote against such a file and use it for
demonstration purposes. However, most .R files I find out there are
rather short without much structure.

Your request doesn't make a whole lot of sense to me, but there are so
many thousands of R files on CRAN that there's bound to be something
that makes you happy.