public virtual void PopulateWithListChoices()
{
this.Clear();
//xxx is a dummy fieldname just to satisfy the constructor
DoubleAggregateSummary sum = DoubleAggregateSummary.Empty;// new DoubleAggregateSummary(0, double.MaxValue, double.MinValue, 0d);
this.Add(new PivotComputationInfo(sum, "Sum", "Sum of {*}", "xxx"));
this.Add(new PivotComputationInfo(sum, "Average", "Average of {*}", "xxx"));
DoubleVectorSummary v = DoubleVectorSummary.Empty;// new DoubleVectorSummary(new double[] { 1, 2, 3 }, 3);// any will do
this.Add(new PivotComputationInfo(v, "Median", "Median of {*}", "xxx"));
this.Add(new PivotComputationInfo(v, "Percentile25", "25 Percentile of {*}", "xxx"));
this.Add(new PivotComputationInfo(v, "Percentile75", "75 Percentile of {*}", "xxx"));
CountSummary c = CountSummary.Empty;// new VectorSummary(null, 0);
this.Add(new PivotComputationInfo(c, "Count", "Count of {*}", "xxx"));
DoubleStdDevSummary sd = DoubleStdDevSummary.Empty;
this.Add(new PivotComputationInfo(sd, "StdDev", "StDev of {*}", "xxx"));
this.Add(new PivotComputationInfo(sd, "StdDevP", "StDevP of {*}", "xxx"));
this.Add(new PivotComputationInfo(sd, "Var", "Var of {*}", "xxx"));
this.Add(new PivotComputationInfo(sd, "VarP", "VarP of {*}", "xxx"));
}
/// <summary>
/// Combines the values of this summary with another summary and returns
/// a new summary object.
/// </summary>
/// <param name="other">Another summary object (of the same type).</param>
/// <returns>A new summary object with combined values of both summaries.</returns>
public DoubleStdDevSummary Combine(DoubleStdDevSummary other)
{
if (other.count == 0)
{
return(this);
}
else if (this.count == 0)
{
return(other);
}
else
{
return(new DoubleStdDevSummary(
this.count + other.count,
this.sum + other.sum,
this.sumX2 + other.sumX2
));
}
}
