Greetings -

Is anyone aware of an automatic code diagrammer/flow chart creator that
works for the R language (either a contributed package, or external
software)?  I need to explain some code structure of a package I'm working
on to non-R users, and would find it extremely helpful to have such a
program similar to, for example, Visustin (
http://www.aivosto.com/visustin.html ).  I can do it "by hand" (possibly
with the help of the 'diagram' package) but it seems like automated
capabilities for recognizing nested structures and argument-passing would be
of good general use to package developers.

Much appreciated,
-Ben Bryant

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