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 Feynman33 : FeynmanDescriptor {
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8 | public override string Name {
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9 | get { return "Feynman I.32.17 (1/2*epsilon*c*Ef**2)*(8*pi*r**2/3)*(omega**4/(omega**2-omega_0**2)**2)"; }
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10 | }
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11 |
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12 | protected override string TargetVariable { get { return "Pwr"; } }
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13 |
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14 | protected override string[] VariableNames {
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15 | get { return new[] {"epsilon", "c", "Ef", "r", "omega", "omega_0", "Pwr"}; }
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16 | }
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17 |
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18 | protected override string[] AllowedInputVariables {
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19 | get { return new[] {"epsilon", "c", "Ef", "r", "omega", "omega_0"}; }
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20 | }
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21 |
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22 | public int Seed { get; private set; }
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23 |
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24 | public Feynman33() : this((int) DateTime.Now.Ticks) { }
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25 |
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26 | public Feynman33(int seed) {
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27 | Seed = seed;
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28 | }
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29 |
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30 | protected override List<List<double>> GenerateValues() {
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31 | var rand = new MersenneTwister((uint) Seed);
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32 |
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33 | var data = new List<List<double>>();
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34 | var epsilon = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList();
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35 | var c = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList();
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36 | var Ef = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList();
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37 | var r = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList();
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38 | var omega = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList();
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39 | var omega_0 = ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 3, 5).ToList();
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40 |
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41 | var Pwr = new List<double>();
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42 |
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43 | data.Add(epsilon);
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44 | data.Add(c);
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45 | data.Add(Ef);
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46 | data.Add(r);
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47 | data.Add(omega);
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48 | data.Add(omega_0);
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49 | data.Add(Pwr);
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50 |
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51 | for (var i = 0; i < epsilon.Count; i++) {
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52 | var res = 1.0 / 2 * epsilon[i] * c[i] * Math.Pow(Ef[i], 2) * (8 * Math.PI + Math.Pow(r[i], 2) / 3) * (Math.Pow(omega[i], 4) / Math.Pow((Math.Pow(omega[i], 2) - Math.Pow(omega_0[i], 2)),2));
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53 | Pwr.Add(res);
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54 | }
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55 |
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56 | return data;
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57 | }
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58 | }
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59 | } |
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