/// <summary> /// Gets the cumulative distribution function (cdf) for /// the χ² distribution evaluated at point <c>x</c>. /// </summary> /// <remarks> /// The Cumulative Distribution Function (CDF) describes the cumulative /// probability that a given value or any value smaller than it will occur. /// </remarks> public override double DistributionFunction(double x) { return(Special.ChiSq(degreesOfFreedom, x)); }