1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Linq;
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4 | using HeuristicLab.Random;
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5 |
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6 | namespace HeuristicLab.Problems.Instances.DataAnalysis {
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7 | public class Feynman49 : FeynmanDescriptor {
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8 | public Feynman49() : this((int) DateTime.Now.Ticks) { }
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9 |
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10 | public Feynman49(int seed) {
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11 | Seed = seed;
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12 | }
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13 |
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14 | public override string Name { get { return "Feynman I.47.23 sqrt(gamma*pr/rho)"; } }
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15 |
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16 | protected override string TargetVariable { get { return "c"; } }
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17 | protected override string[] VariableNames { get { return new[] {"gamma", "pr", "rho", "c"}; } }
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18 | protected override string[] AllowedInputVariables { get { return new[] {"gamma", "pr", "rho"}; } }
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19 |
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20 | public int Seed { get; private set; }
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21 |
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22 | protected override List<List<double>> GenerateValues() {
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23 | var rand = new MersenneTwister((uint) Seed);
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24 |
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25 | var data = new List<List<double>>();
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26 | var gamma = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 5).ToList();
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27 | var pr = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 5).ToList();
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28 | var rho = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 5).ToList();
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29 |
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30 | var c = new List<double>();
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31 |
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32 | data.Add(gamma);
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33 | data.Add(pr);
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34 | data.Add(rho);
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35 | data.Add(c);
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36 |
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37 | for (var i = 0; i < gamma.Count; i++) {
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38 | var res = Math.Sqrt(gamma[i] * pr[i] / rho[i]);
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39 | c.Add(res);
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40 | }
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41 |
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42 | return data;
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43 | }
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44 | }
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45 | } |
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