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source: trunk/sources/HeuristicLab.Algorithms.DataAnalysis.Views/3.4/GradientBoostedTreesModelView.cs @ 14349

Last change on this file since 14349 was 14345, checked in by gkronber, 8 years ago

#2690: implemented methods to generate symbolic expression tree solutions for decision tree models (random forest and gradient boosted) as well as views which make it possible to inspect each of the individual trees in a GBT and RF solution

File size: 2.7 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System.Drawing;
23using HeuristicLab.MainForm;
24using HeuristicLab.Problems.DataAnalysis;
25using HeuristicLab.Problems.DataAnalysis.Views;
26
27namespace HeuristicLab.Algorithms.DataAnalysis.Views {
28  [View("Gradient boosted tree model")]
29  [Content(typeof(GradientBoostedTreesSolution), false)]
30  public partial class GradientBoostedTreesModelView : DataAnalysisSolutionEvaluationView {
31    public override Image ViewImage {
32      get { return HeuristicLab.Common.Resources.VSImageLibrary.Function; }
33    }
34
35    public new GradientBoostedTreesSolution Content {
36      get { return (GradientBoostedTreesSolution)base.Content; }
37      set { base.Content = value; }
38    }
39
40    protected override void SetEnabledStateOfControls() {
41      base.SetEnabledStateOfControls();
42      listBox.Enabled = Content != null;
43      viewHost.Enabled = Content != null;
44    }
45
46    public GradientBoostedTreesModelView()
47      : base() {
48      InitializeComponent();
49    }
50
51    protected override void OnContentChanged() {
52      base.OnContentChanged();
53      if (Content == null) {
54        viewHost.Content = null;
55        listBox.Items.Clear();
56      } else {
57        viewHost.Content = null;
58        listBox.Items.Clear();
59        foreach (var e in Content.Model.Models) {
60          listBox.Items.Add(e);
61        }
62      }
63    }
64
65    private void listBox_SelectedIndexChanged(object sender, System.EventArgs e) {
66      var model = listBox.SelectedItem;
67      if (model == null) viewHost.Content = null;
68      else {
69        var treeModel = model as RegressionTreeModel;
70        if (treeModel != null)
71          viewHost.Content = treeModel.CreateSymbolicRegressionSolution(Content.ProblemData);
72        else {
73          var regModel = model as IRegressionModel;
74          viewHost.Content = regModel;
75        }
76      }
77    }
78  }
79}
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