/// <summary>
/// Calculates the variance of a set of complex values.
/// </summary>
/// <param name="Values">Values</param>
/// <param name="Node">Node performing the evaluation.</param>
/// <returns>Variance.</returns>
public static Complex CalcVariance(Complex[] Values, ScriptNode Node)
{
Complex Avg = Average.CalcAverage(Values, Node);
Complex Result = 0;
Complex d;
int i, c = Values.Length;
for (i = 0; i < c; i++)
{
d = (Values[i] - Avg);
Result += d * d;
}
Result /= c;
return(Result);
}
/// <summary>
/// Calculates the variance of a set of double values.
/// </summary>
/// <param name="Values">Values</param>
/// <param name="Node">Node performing the evaluation.</param>
/// <returns>Variance.</returns>
public static double CalcVariance(double[] Values, ScriptNode Node)
{
double Avg = Average.CalcAverage(Values, Node);
double Result = 0;
double d;
int i, c = Values.Length;
for (i = 0; i < c; i++)
{
d = (Values[i] - Avg);
Result += d * d;
}
Result /= c;
return(Result);
}
/// <summary>
/// Calculates the standard deviation of a set of double values.
/// </summary>
/// <param name="Values">Values</param>
/// <param name="Node">Node performing the evaluation.</param>
/// <returns>Standard deviation.</returns>
public static double CalcStandardDeviation(double[] Values, ScriptNode Node)
{
double Avg = Average.CalcAverage(Values, Node);
double Result = 0;
double d;
int i, c = Values.Length;
if (c == 1)
{
return(0);
}
for (i = 0; i < c; i++)
{
d = (Values[i] - Avg);
Result += d * d;
}
Result /= (c - 1);
return(Math.Sqrt(Result));
}
/// <summary>
/// Calculates the standard deviation of a set of complex values.
/// </summary>
/// <param name="Values">Values</param>
/// <param name="Node">Node performing the evaluation.</param>
/// <returns>Standard deviation.</returns>
public static Complex CalcStandardDeviation(Complex[] Values, ScriptNode Node)
{
Complex Avg = Average.CalcAverage(Values, Node);
Complex Result = 0;
Complex d;
int i, c = Values.Length;
if (c == 1)
{
return(Complex.Zero);
}
for (i = 0; i < c; i++)
{
d = (Values[i] - Avg);
Result += d * d;
}
Result /= (c - 1);
return(Complex.Sqrt(Result));
}
