Robert,

I'm afraid I know nothing of the detail - but the ClassInt package does
implement a number of different breaks algorithms. Refer
http://cran.r-project.org/web/packages/classInt/ from which you can download
the sources of course.

Kind regards,
Sean O'Riordain


On 14 October 2010 16:26, Macdonald, Robert <r.macdonald@cranfield.ac.uk>wrote:

> 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
>
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