MathPHP\Statistics\RandomVariable::isPlatykurtic PHP Method

Is the kurtosis negative? (Platykurtic) Indicates a flat distribution.

public static isPlatykurtic ( array $X ) : boolean
$X	array	list of numbers (random variable X)
return	boolean	true if platykurtic

    public static function isPlatykurtic(array $X) : bool
    {
        return self::kurtosis($X) < 0;
    }

RandomVariable