PHP code example of square1 / laravel-collection-rolling-average

1. Go to this page and download the library: Download square1/laravel-collection-rolling-average 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/ */

square1 / laravel-collection-rolling-average example snippets


    $data = new Collection([1, 2, 3, 4, 5]);

    $averages = $data->rollingAverage();
    /**
     *   1,      // 1
     *   1.5,    // 1+2 / 2 (only 2 entries seen so far)
     *   2,      // 1+2+3 / 3
     *   2.5,    // 1+2+3+4 / 4
     *   3       // 1+2+3+4+5 / 5
     */


    $data = new Collection([1, 2, 3, 4, 5, 6]);
    // How many entries should we consider in our average?
    $lookback = 2;
    $averages = $data->rollingAverage($lookback);
    /**
     * Looking back over last 2 entries, averages should be:
     *   1,      // 1
     *   1.5,    // 1+2 / 2
     *   2.5,    // 2+3 / 2
     *   3.5,    // 3+4 / 2
     *   4.5,    // 4+5 / 2
     *   5.5     // 5+6 / 2
     */

 php
    $data = new Collection([1, 2, 3, 4, 5, 6]);
    $averages = $data->rollingAverage(4, $enforceLimitedLookback = true);

    /**
     * 2.5,
     * 3.5,
     * 4.5
     */