/// <summary>
/// Gets the probability density function (pdf) for
/// this distribution evaluated at point <c>x</c>.
/// </summary>
///
/// <param name="x">A single point in the distribution range.</param>
///
/// <returns>
/// The probability of <c>x</c> occurring
/// in the current distribution.
/// </returns>
///
public override double ProbabilityDensityFunction(double x)
{
if (pdf != null)
{
return(pdf(x));
}
return(FiniteDifferences.Derivative(cdf, x, 1, 1e-6));
}
/// <summary>
/// Gets the probability density function (pdf) for
/// this distribution evaluated at point <c>x</c>.
/// </summary>
///
/// <param name="x">A single point in the distribution range.</param>
///
/// <returns>
/// The probability of <c>x</c> occurring
/// in the current distribution.
/// </returns>
///
protected internal override double InnerProbabilityDensityFunction(double x)
{
if (pdf != null)
{
return(pdf(x));
}
return(FiniteDifferences.Derivative(cdf, x, 1, 1e-6));
}