/// <summary>
/// Standard
/// </summary>
/// <param name="origin">Original Distribution</param>
/// <param name="leftBorder">Left Border</param>
/// <param name="rightBorder">Right Border</param>
public BaseTrimmedContinuousDistribution(IContinuousProbabilityDistribution origin,
double leftBorder,
double rightBorder)
{
Origin = origin ?? throw new ArgumentNullException(nameof(origin));
if (leftBorder <= rightBorder)
{
LeftBorder = leftBorder;
RightBorder = rightBorder;
}
else
{
throw new ArgumentOutOfRangeException(nameof(leftBorder), "Empty region");
}
m_CdfRight = Origin.Cdf(RightBorder);
m_CdfLeft = Origin.Cdf(LeftBorder);
if (m_CdfRight <= 0)
{
throw new ArgumentOutOfRangeException(nameof(rightBorder), "Zero density region");
}
if (leftBorder != rightBorder && (m_CdfRight - m_CdfLeft <= 0))
{
throw new ArgumentOutOfRangeException(nameof(rightBorder), "Zero density region");
}
}
/// <summary>
/// Cumulative Density Function
/// </summary>
public override double Cdf(double x)
{
if (x < LeftBorder)
{
return(0);
}
else if (x >= RightBorder)
{
return(1);
}
return((Origin.Cdf(x) - m_CdfLeft) * m_Multiplicator);
}
/// <summary>
/// Cumulative Density Function
/// </summary>
public override double Cdf(double x)
{
if (x < LeftBorder)
{
return(0);
}
else if (x >= RightBorder)
{
return(1);
}
return((Origin.Cdf(x) - m_CdfLeft) +
(x - LeftBorder) / (RightBorder - LeftBorder) * (m_CdfLeft + 1 - m_CdfRight));
}
