[2340] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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| 23 | using HeuristicLab.Core;
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| 24 | using HeuristicLab.Data;
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| 25 | using HeuristicLab.DataAnalysis;
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| 26 | using System.Linq;
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| 27 |
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[2351] | 28 | namespace HeuristicLab.Modeling {
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[2340] | 29 | public class TargetClassesCalculator : OperatorBase {
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| 30 |
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| 31 | public TargetClassesCalculator()
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| 32 | : base() {
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| 33 | AddVariableInfo(new VariableInfo("Dataset", "The dataset", typeof(Dataset), VariableKind.In));
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| 34 | AddVariableInfo(new VariableInfo("TargetVariable", "Index of the target variable", typeof(IntData), VariableKind.In));
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| 35 | AddVariableInfo(new VariableInfo("TargetClassValues", "The original class values of target variable (for instance negative=0 and positive=1).", typeof(ItemList<DoubleData>), VariableKind.New));
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| 36 | }
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| 37 |
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| 38 | public override IOperation Apply(IScope scope) {
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| 39 | Dataset dataset = GetVariableValue<Dataset>("Dataset", scope, true);
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| 40 | int targetVariable = GetVariableValue<IntData>("TargetVariable", scope, true).Data;
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| 41 |
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| 42 | ItemList<DoubleData> classes = new ItemList<DoubleData>();
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[2351] | 43 | foreach (double x in dataset.GetVariableValues(targetVariable).Distinct().OrderBy(v => v)) {
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[2340] | 44 | classes.Add(new DoubleData(x));
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| 45 | }
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| 46 |
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| 47 | scope.AddVariable(new HeuristicLab.Core.Variable(scope.TranslateName("TargetClassValues"), classes));
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| 48 | return null;
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| 49 | }
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| 50 | }
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| 51 | }
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