Looking for Jenks Optimization - Data Classification

I'm looking for an implementation of the Jenks Optimization algorithm for data classification.

Jenks is used开发者_Python百科 to find "natural breaks" in the data.

I want to create kml maps for the US and color each county based on this algorithm.

I'm using php, but can figure out other languages as well.

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Here you go in python

http://danieljlewis.org/2010/06/07/jenks-natural-breaks-algorithm-in-python/

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Here You have PHP
https://github.com/randomdrake/jenks/blob/master/jenks.php

This is implementation of Jenks algorithm.
David Drake made these functions and integrated it with Google API.