public void ReplaceRandomItem()
{
var randomValue = random.Next(1, 10);
var randomWeight = random.Next(1, 10);
var randomIndex = random.Next(0, observableValues.Count - 1);
observableValues[randomIndex] = new WeightedPoint(observableValues[randomIndex].X, randomValue, randomWeight);
}
/// @param pdf DhbStatistics.ScaledProbabilityDensityFunction
/// @return double chi2 of histogram compared to supplied
/// probability distribution.
public double Chi2Against(ScaledProbabilityDensityFunction pdf)
{
double chi2 = 0;
for (int i = 0; i < _contents.Length; i++)
{
chi2 += new WeightedPoint(1, _contents[i]).Chi2Contribution(pdf);
}
return(chi2);
}
