[8437] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[16565] | 3 | * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[8437] | 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.Collections.Generic;
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| 23 | using System.Linq;
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| 24 | using System.Windows.Forms;
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| 25 | using HeuristicLab.Analysis;
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| 26 | using HeuristicLab.Common;
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| 27 | using HeuristicLab.MainForm;
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| 28 | using HeuristicLab.MainForm.WindowsForms;
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| 29 | using HeuristicLab.Problems.DataAnalysis.Views;
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| 30 |
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[8471] | 31 | namespace HeuristicLab.Algorithms.DataAnalysis.Views {
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[8437] | 32 | [View("Dimension Reduction")]
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[8466] | 33 | [Content(typeof(INcaClassificationSolution), IsDefaultView = false)]
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[8437] | 34 | public partial class NCADimensionReductionView : DataAnalysisSolutionEvaluationView {
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| 35 | private ViewHost viewHost = new ViewHost();
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| 36 | private ScatterPlot scatterPlot = new ScatterPlot();
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| 37 |
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[8466] | 38 | public new INcaClassificationSolution Content {
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| 39 | get { return (INcaClassificationSolution)base.Content; }
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[8437] | 40 | set { base.Content = value; }
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| 41 | }
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| 42 |
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| 43 | public NCADimensionReductionView() {
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| 44 | InitializeComponent();
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| 45 | messageLabel.Visible = false;
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| 46 | viewHost.Dock = DockStyle.Fill;
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| 47 | splitContainer.Panel2.Controls.Add(viewHost);
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| 48 | rangeComboBox.SelectedIndex = 0;
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| 49 | }
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| 50 |
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| 51 | protected override void OnContentChanged() {
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| 52 | base.OnContentChanged();
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| 53 | if (Content == null) {
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| 54 | viewHost.Content = null;
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| 55 | scatterPlot.Rows.Clear();
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| 56 | } else {
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| 57 | UpdateScatterPlot();
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| 58 | viewHost.Content = scatterPlot;
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | private void UpdateScatterPlot() {
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| 63 | scatterPlot.Rows.Clear();
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| 64 | var rows = Content.ProblemData.ClassValues
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| 65 | .ToDictionary(c => c, c => new ScatterPlotDataRow(Content.ProblemData.GetClassName(c), string.Empty, Enumerable.Empty<Point2D<double>>()));
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[8470] | 66 | foreach (var r in rows.Values)
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| 67 | r.VisualProperties.PointSize = 5;
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[8437] | 68 |
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| 69 | IEnumerable<int> range = null;
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| 70 | if (rangeComboBox.SelectedIndex == 0) range = Content.ProblemData.TrainingIndices;
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| 71 | else if (rangeComboBox.SelectedIndex == 1) range = Content.ProblemData.TestIndices;
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| 72 | else range = Enumerable.Range(0, Content.ProblemData.Dataset.Rows);
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| 73 |
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| 74 | var reduced = Content.Model.Reduce(Content.ProblemData.Dataset, range);
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| 75 |
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| 76 | int idx = 0;
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[8466] | 77 | if (reduced.GetLength(1) == 2) { // last column is the target variable
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[8437] | 78 | foreach (var r in range) {
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| 79 | var label = Content.ProblemData.Dataset.GetDoubleValue(Content.ProblemData.TargetVariable, r);
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| 80 | rows[label].Points.Add(new Point2D<double>(reduced[idx++, 0], 1.0));
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| 81 | }
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| 82 | } else {
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| 83 | foreach (var r in range) {
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| 84 | var label = Content.ProblemData.Dataset.GetDoubleValue(Content.ProblemData.TargetVariable, r);
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| 85 | rows[label].Points.Add(new Point2D<double>(reduced[idx, 0], reduced[idx, 1]));
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| 86 | idx++;
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| 87 | }
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| 88 | }
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| 89 | scatterPlot.Rows.AddRange(rows.Values);
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| 90 | }
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| 91 |
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| 92 | protected override void SetEnabledStateOfControls() {
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| 93 | base.SetEnabledStateOfControls();
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| 94 | rangeComboBox.Enabled = Content != null && viewHost.Visible;
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| 95 | }
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| 96 |
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| 97 | #region Event Handlers
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| 98 | private void rangeComboBox_SelectedIndexChanged(object sender, System.EventArgs e) {
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| 99 | if (Content != null) UpdateScatterPlot();
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| 100 | }
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| 101 | #endregion
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| 102 | }
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| 103 | }
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