40 lines
1.2 KiB
C#
40 lines
1.2 KiB
C#
using BotSharp.Algorithm.HiddenMarkovModel.MathUtils.Distribution;
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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 Sample
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{
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public static List<T> SampleWithoutReplacement<T>(IList<T> data, int sampleCount)
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{
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List<T> sample = new List<T>();
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for (int i = 0; i < sampleCount; ++i)
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{
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T sampleVal = data[DistributionModel.NextInt(sampleCount)];
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sample.Add(sampleVal);
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}
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return sample;
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}
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public static List<T> SampleWithReplacement<T>(IList<T> data, int sampleCount)
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{
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List<T> sample = new List<T>();
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List<T> temp = data.ToList();
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T sampleValue;
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int sampleIndex;
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for (int i = 0; i < sampleCount; ++i)
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{
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sampleIndex = DistributionModel.NextInt(temp.Count);
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sampleValue = temp[sampleIndex];
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sample.Add(sampleValue);
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temp.RemoveAt(sampleIndex);
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}
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return sample;
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}
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}
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}
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