51 lines
1.5 KiB
C#
51 lines
1.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace BotSharp.Algorithm.HiddenMarkovModel.MathUtils.Statistics
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{
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public class StdDev
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{
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public static double GetStdDev(double[] sample, double sampleMean)
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{
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double sum = 0;
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for (int i = 0; i < sample.Length; ++i)
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{
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sum += System.Math.Pow(sample[i] - sampleMean, 2);
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}
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return System.Math.Sqrt(sum / sample.Length);
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}
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public static double GetStdDev(IList<double> sample, double sampleMean)
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{
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double sum = 0;
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for (int i = 0; i < sample.Count; ++i)
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{
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sum += System.Math.Pow(sample[i] - sampleMean, 2);
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}
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return System.Math.Sqrt(sum / sample.Count);
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}
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public static float GetStdDev(float[] sample, float sampleMean)
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{
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float sum = 0;
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for (int i = 0; i < sample.Length; ++i)
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{
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sum += (float)System.Math.Pow(sample[i] - sampleMean, 2);
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}
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return (float)System.Math.Sqrt(sum / sample.Length);
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}
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public static float GetStdDev(IList<float> sample, float sampleMean)
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{
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float sum = 0;
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for (int i = 0; i < sample.Count; ++i)
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{
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sum += (float)System.Math.Pow(sample[i] - sampleMean, 2);
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}
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return (float)System.Math.Sqrt(sum / sample.Count);
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}
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}
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}
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