Last change
on this file since 3580 was
2428,
checked in by gkronber, 15 years ago
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Implemented #782 (Additional model quality metrics: Pearson product-moment correlation coefficient and Spearman's rank correlation coefficient)
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File size:
932 bytes
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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 System.Text;
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5 | using HeuristicLab.Core;
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6 | using HeuristicLab.Data;
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7 | using HeuristicLab.DataAnalysis;
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8 |
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9 | namespace HeuristicLab.Modeling {
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10 | public class SimpleSpearmansRankCorrelationCoefficientEvaluator : SimpleEvaluatorBase {
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11 |
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12 | public override string OutputVariableName {
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13 | get {
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14 | return "SpearmansRankCorrelationCoefficient";
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15 | }
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16 | }
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17 |
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18 | public override double Evaluate(double[,] values) {
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19 | try {
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20 | return Calculate(values);
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21 | }
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22 | catch (ArgumentException) {
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23 | return double.NegativeInfinity;
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24 | }
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25 | }
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26 |
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27 | public static double Calculate(double[,] values) {
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28 | return alglib.correlation.spearmanrankcorrelation(
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29 | Matrix<double>.GetColumn(values, ESTIMATION_INDEX),
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30 | Matrix<double>.GetColumn(values, ORIGINAL_INDEX),
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31 | values.GetLength(0));
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32 | }
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33 | }
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34 | }
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