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source: branches/DataAnalysis/HeuristicLab.Problems.DataAnalysis.Views/3.3/DataAnalysisProblemDataCorrelationsView.cs @ 4475

Last change on this file since 4475 was 4197, checked in by gkronber, 14 years ago

Added new files for data analysis feature exploration. #1142

File size: 2.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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;
23using System.Windows.Forms;
24using HeuristicLab.Core.Views;
25using HeuristicLab.MainForm;
26using HeuristicLab.PluginInfrastructure;
27using HeuristicLab.MainForm.WindowsForms;
28using System.Collections.Generic;
29using System.Linq;
30using System.Text;
31
32namespace HeuristicLab.Problems.DataAnalysis.Views {
33  [View("Data-Analysis Problem Correlations View")]
34  [Content(typeof(DataAnalysisProblemData))]
35  public partial class DataAnalysisProblemDataCorrelationsView : AsynchronousContentView {
36    private OpenFileDialog openFileDialog;
37    public new DataAnalysisProblemData Content {
38      get { return (DataAnalysisProblemData)base.Content; }
39      set { base.Content = value; }
40    }
41
42    public DataAnalysisProblemDataCorrelationsView() {
43      InitializeComponent();
44    }
45
46    protected override void OnContentChanged() {
47      base.OnContentChanged();
48      StringBuilder s = new StringBuilder();
49      Dataset ds = Content.Dataset;
50      for (int i=0;i<ds.Columns - 1;i++) {
51        for (int j = i + 1; j < ds.Columns;j++ ) {
52          string a = ds.GetVariableName(i);
53          string b = ds.GetVariableName(j);
54          double[] var0 = ds.GetEnumeratedVariableValues(a).ToArray();
55          double[] var1 = ds.GetEnumeratedVariableValues(b).ToArray();
56          double r = alglib.correlation.spearmanrankcorrelation(var0, var1, var0.Length);
57          double bothtails, temp;
58          bothtails = temp = 0.0;
59          alglib.correlationtests.spearmanrankcorrelationsignificance(r, var0.Length, ref bothtails, ref temp, ref temp);
60          if(bothtails < 0.001 && r > 0.85) s.AppendLine(a + " -- " + b + " [len=\"" + 1.0/(r*r) + "\"];");
61        }
62      }
63
64      textBox.Text = s.ToString();
65    }
66  }
67}
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