HdrHistogram.HistogramBase.MedianEquivalentValue C# (CSharp) Method

        public long MedianEquivalentValue(long value)
        {
            return LowestEquivalentValue(value)
                + (SizeOfEquivalentValueRange(value) >> 1);
        }

        /// <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);
        }