https://github.com/tdebatty/php-clustering

Clustering algorithms for PHP
https://github.com/tdebatty/php-clustering

Last synced: 3 months ago
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Clustering algorithms for PHP

• Host: GitHub
• URL: https://github.com/tdebatty/php-clustering
• Owner: tdebatty
• Created: 2013-07-30T09:52:26.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2014-12-31T10:49:25.000Z (about 11 years ago)
• Last Synced: 2025-03-26T02:51:07.217Z (10 months ago)
• Language: PHP
• Size: 146 KB
• Stars: 8
• Watchers: 4
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
php-clustering

==============

Clustering algorithms for PHP

Usage

-----

```php

use \webd\clustering\KMeans;

use \webd\clustering\GMeans;

use \webd\clustering\RnPoint;

// These examples use points in Rn, but some algorithms (like KMeans)

// support points in non-euclidean spaces

$points = array(

    new RnPoint(array(1, 1)),

    new RnPoint(array(2, 2)),

    new RnPoint(array(2, 3))

);

// Simple KMeans

$kmeans = new KMeans;

$kmeans->k = 2;

$kmeans->n = 10;

$kmeans->points = $points;

$kmeans->run();

var_dump($kmeans->centers);

// GMeans (no need to specify the number of clusters)

$nd = new \webd\stats\NormalDistribution();

// Create points around (1, 1) and (9, 9)

$points = array();

for ($i = 0; $i < 100; $i++) {

    $points[] = new RnPoint($nd->sample()+1, $nd->sample()+1);

    $points[] = new RnPoint($nd->sample()+9, $nd->sample()+9);

}

$gmeans = new GMeans();

$gmeans->points = $points;

$gmeans->run();

var_dump($gmeans->found_centers);

```