[R-sig-Geo] Requesting Jenks natural breaks implementation in R or Statistica

[Macdonald, Robert]

Dear r-sig-geo,

I have data distributions (particle size distributions) and I have been advised to separate parts of the distributions using jenks natural breaks procedure. I am seeking a macro written directly for Statistica that can implement this, or else I am seeking Jenks natural breaks coded in R and an idiots guide to implementing that in Statistica.

All help greatfully received!

Thanks for your time,
Robert