MathPHP\Statistics\Descriptive::percentile PHP Метод

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percentile() публичный статический Метод

Nearest rank method P-th percentile (0 <= P <= 100) of a list of N ordered values (sorted from least to greatest) is the smallest value in the list such that P percent of the data is less than or equal to that value. This is obtained by first calculating the ordinal rank, and then taking the value from the ordered list that corresponds to that rank. https://en.wikipedia.org/wiki/Percentile ⌈ P ⌉ n = | --- × N | | 100 | n: ordinal rank P: percentile N: number of elements in list

public static percentile ( array $numbers, integer $P ) : number
$numbers	array
$P	integer	percentile to calculate
Результат	number	in list corresponding to P percentile

    public static function percentile(array $numbers, int $P)
    {
        if ($P < 0 || $P > 100) {
            throw new Exception\OutOfBoundsException('Percentile P must be between 0 and 100.');
        }
        sort($numbers);
        $N = count($numbers);
        $n = $P / 100 * $N;
        return $numbers[ceil($n) - 1];
    }

Descriptive

IQR

coefficientOfVariation

describe

fiveNumberSummary

interquartileRange

meanAbsoluteDeviation

medianAbsoluteDeviation

midhinge

midrange

percentile

populationVariance