/// <summary>
/// assertion: isBasicParametersValid == false
///
/// </summary>
protected void UpdateIncrementalStats()
{
// prepare arguments
double[] arguments = new double[4];
arguments[0] = base.Min;
arguments[1] = base.Max;
arguments[2] = base.Sum;
arguments[3] = base.SumOfSquares;
Descriptive.IncrementalUpdate(this.Elements, this.Size, this.Elements.Size - 1, ref arguments);
// store the new parameters back
base.Min = arguments[0];
base.Max = arguments[1];
base.Sum = arguments[2];
base.SumOfSquares = arguments[3];
this.isIncrementalStatValid = true;
//this.Size = this.Elements.Count; // next time we don't need to redo the stuff we have just done..
}
public override void AddAllOfFromTo(DoubleArrayList list, int from, int to)
{
//if (this.arguments == null) setUpCache();
lock (arguments) {
// prepare arguments
arguments[0] = this.min;
arguments[1] = this.max;
arguments[2] = this.sum;
arguments[3] = this.sum_xx;
Descriptive.IncrementalUpdate(list, from, to, ref arguments);
// store the new parameters back
this.min = arguments[0];
this.max = arguments[1];
this.sum = arguments[2];
this.sum_xx = arguments[3];
this.size += to - from + 1;
}
}
