PHP code example of ankane / rcf

1. Go to this page and download the library: Download ankane/rcf library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

ankane / rcf example snippets


$forest = new Rcf\Forest(3);


$forest->score([1.0, 2.0, 3.0]);


$forest->update([1.0, 2.0, 3.0]);


$forest = new Rcf\Forest(3);

for ($i = 0; $i < 200; $i++) {
    $point = [];
    $point[0] = mt_rand() / mt_getrandmax();
    $point[1] = mt_rand() / mt_getrandmax();
    $point[2] = mt_rand() / mt_getrandmax();

    // make the second to last point an anomaly
    if ($i == 198) {
        $point[1] = 2;
    }

    $score = $forest->score($point);
    echo "point = $i, score = $score\n";
    $forest->update($point);
}


new Rcf\Forest(
    $dimensions,
    shingleSize: 1,         // shingle size to use
    sampleSize: 256,        // points to keep in sample for each tree
    numberOfTrees: 100,     // number of trees to use in the forest
    randomSeed: 42,         // random seed to use
    parallel: false         // enable parallel execution
)

sh
git clone https://github.com/ankane/random-cut-forest-php.git
cd random-cut-forest-php
composer install
composer test