[10539] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[15583] | 3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[10539] | 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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[15846] | 22 | using System.Collections.Generic;
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[10539] | 23 | using System.Drawing;
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[15846] | 24 | using System.Linq;
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[10539] | 25 | using HeuristicLab.Common;
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[10245] | 26 | using HeuristicLab.Core;
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[15518] | 27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[11068] | 28 | using HeuristicLab.Problems.DataAnalysis;
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[10242] | 29 |
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[10539] | 30 | namespace HeuristicLab.DataPreprocessing {
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[10313] | 31 | [Item("Transformation", "Represents the transformation grid.")]
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[15518] | 32 | [StorableClass]
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| 33 | public class TransformationContent : PreprocessingContent, IViewShortcut {
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[15110] | 34 | public static new Image StaticItemImage {
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| 35 | get { return HeuristicLab.Common.Resources.VSImageLibrary.Method; }
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| 36 | }
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[10252] | 37 |
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[15518] | 38 | [Storable]
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[15846] | 39 | public ICheckedItemList<IDataAnalysisTransformation> CheckedTransformationList { get; private set; }
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[10772] | 40 |
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[15518] | 41 | #region Constructor, Cloning & Persistence
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| 42 | public TransformationContent(IFilteredPreprocessingData preprocessingData)
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| 43 | : base(preprocessingData) {
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[15846] | 44 | CheckedTransformationList = new CheckedItemList<IDataAnalysisTransformation>();
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[10252] | 45 | }
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| 46 |
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[10772] | 47 | public TransformationContent(TransformationContent original, Cloner cloner)
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| 48 | : base(original, cloner) {
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[15518] | 49 | CheckedTransformationList = cloner.Clone(original.CheckedTransformationList);
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[10245] | 50 | }
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[10539] | 51 | public override IDeepCloneable Clone(Cloner cloner) {
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[10245] | 52 | return new TransformationContent(this, cloner);
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| 53 | }
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[15518] | 54 |
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| 55 | [StorableConstructor]
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| 56 | protected TransformationContent(bool deserializing)
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| 57 | : base(deserializing) { }
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| 58 | #endregion
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[15846] | 59 |
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| 60 | public bool ApplyTransformations(out IEnumerable<string> errorMessages) {
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| 61 | var transformations = CheckedTransformationList.CheckedItems.Select(x => x.Value);
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| 62 |
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| 63 | bool success = true;
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| 64 | var errors = new List<string>();
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| 65 | errorMessages = errors;
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| 66 |
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| 67 | foreach (var transformation in transformations) {
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| 68 | var sourceVariable = transformation.OriginalVariable;
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| 69 | var targetVariable = transformation.TransformedVariable ?? sourceVariable + " Transformed";
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| 70 | var sourceIdx = PreprocessingData.GetColumnIndex(sourceVariable);
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| 71 |
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| 72 | if (transformation.Transformation is ITransformation<double> trans && PreprocessingData.VariableHasType<double>(sourceIdx)) {
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| 73 | if (!PreprocessingData.VariableNames.Contains(targetVariable))
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| 74 | PreprocessingData.InsertColumn<double>(targetVariable, PreprocessingData.Columns);
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| 75 | var targetIdx = PreprocessingData.GetColumnIndex(targetVariable);
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| 76 |
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| 77 | if (!PreprocessingData.VariableHasType<double>(targetIdx)) { success = false; errors.Add("Target column is not double."); continue; }
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| 78 |
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| 79 | var sourceData = PreprocessingData.GetValues<double>(sourceIdx);
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| 80 | if (!trans.Check(sourceData, out string msg)) { success = false; errors.Add(msg); continue; }
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| 81 |
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| 82 | trans.Configure(sourceData);
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| 83 | var transformedData = trans.Apply(sourceData).ToList();
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| 84 |
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| 85 | PreprocessingData.SetValues(targetIdx, transformedData);
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| 86 |
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| 87 | PreprocessingData.Transformations.Add(transformation);
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| 88 | CheckedTransformationList.SetItemCheckedState(transformation, false);
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| 89 | } else {
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| 90 | success = false;
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| 91 | errors.Add("Transformation datatype is not supported.");
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | return success;
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| 96 | }
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[10242] | 97 | }
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| 98 | }
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