/// <summary>
/// Get the computed mean value of all recorded values in the histogram
/// </summary>
/// <returns>the mean value (in value units) of the histogram data</returns>
public static double GetMean(this HistogramBase histogram)
{
var totalCount = histogram.TotalCount;
if (totalCount == 0)
{
return(0);
}
var totalValue = histogram.RecordedValues().Select(hiv => hiv.TotalValueToThisValue).LastOrDefault();
return((totalValue * 1.0) / totalCount);
}
/// <summary>
/// Get the computed standard deviation of all recorded values in the histogram
/// </summary>
/// <returns>the standard deviation (in value units) of the histogram data</returns>
public static double GetStdDeviation(this HistogramBase histogram)
{
var mean = histogram.GetMean();
var geometricDeviationTotal = 0.0;
foreach (var iterationValue in histogram.RecordedValues())
{
double deviation = (histogram.MedianEquivalentValue(iterationValue.ValueIteratedTo) * 1.0) - mean;
geometricDeviationTotal += (deviation * deviation) * iterationValue.CountAddedInThisIterationStep;
}
var stdDeviation = Math.Sqrt(geometricDeviationTotal / histogram.TotalCount);
return(stdDeviation);
}
/// <summary>
/// Get the highest recorded value level in the histogram
/// </summary>
/// <returns>the Max value recorded in the histogram</returns>
public static long GetMaxValue(this HistogramBase histogram)
{
var max = histogram.RecordedValues().Select(hiv => hiv.ValueIteratedTo).LastOrDefault();
return(histogram.HighestEquivalentValue(max));
}