[R] Automatic code diagramming for R?

Gabor Grothendieck ggrothendieck at gmail.com
Tue Oct 7 02:46:35 CEST 2008

findGlobals in the codetools package can find all the functions
that a function calls and you could construct a call graph
from that by combining that with RGraphviz in Bioconductor.

For example, the proto package can automatically create a graph
using RGraphviz showing the parent child relationship among the proto
objects in a program.  The graph at the top of the following page was generated
like that from the program that you can view by clicking on the image:
Its mainly applicable if you use proto but does illustrate the use of

On Mon, Oct 6, 2008 at 8:32 PM, Ben Bryant <bpbryant at gmail.com> wrote:
> 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
>        [[alternative HTML version deleted]]
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