Undemanding\Difference\Calculation\StandardDeviation::__invoke()

Complexity

Conditions	3
Paths	3

Size

Total Lines	16
Code Lines	9

Duplication

Lines	6
Ratio	37.5 %

Code Coverage

Tests	11
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function __invoke(array $map, $width, $height, $average)
    {
        $standardDeviation = 0;

        for ($y = 0; $y < $height; $y++) {

This code seems to be duplicated across your project.

            for ($x = 0; $x < $width; $x++) {
                $delta = $map[$y][$x] - $average;
                $standardDeviation += ($delta * $delta);
            }
        }

        $standardDeviation /= (($width * $height) - 1);
        $standardDeviation = sqrt($standardDeviation);

        return (float) $standardDeviation;
    }
}