Changeset 7664 for branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Problems.DataAnalysis

Timestamp:

03/27/12 10:05:59 (13 years ago)

Author:

sforsten

Message:

#1784:

• added Keijzer, Korns, Vladislavleva und Nguyen regression problem instances
• changes have been made in the ProblemView. Some parts have been replaced with views from Problems.Instances.Views

File:

• branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionProblem.cs (modified) (3 diffs)

branches/ProblemInstancesRegressionAndClassification/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionProblem.cs

@@ -20 +20 @@
 #endregion
 
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using HeuristicLab.Common;
 using HeuristicLab.Core;
@@ -30 +33 @@
   [Creatable("Problems")]
   public class RegressionProblem : DataAnalysisProblem<IRegressionProblemData>, IRegressionProblem, IStorableContent,
-    IProblemInstanceConsumer<RegressionData> {
+    IProblemInstanceConsumer<RegressionData>, IProblemInstanceExporter<RegressionData>, IProblemInstanceConsumer {
     public string Filename { get; set; }
 
@@ -59 +62 @@
       OnReset();
     }
+
+    public RegressionData Export() {
+      if (!ProblemData.InputVariables.Count.Equals(ProblemData.Dataset.DoubleVariables.Count()))
+        throw new ArgumentException("Not all input variables are double variables! (Export only works with double variables)");
+
+      RegressionData regData = new RegressionData();
+      regData.Name = Name;
+      regData.Description = Description;
+      regData.TargetVariable = ProblemData.TargetVariable;
+      regData.InputVariables = ProblemData.InputVariables.Select(x => x.Value);
+      regData.AllowedInputVariables = ProblemData.AllowedInputVariables;
+      regData.TrainingPartitionStart = ProblemData.TrainingPartition.Start;
+      regData.TrainingPartitionEnd = ProblemData.TrainingPartition.End;
+      regData.TestPartitionStart = ProblemData.TestPartition.Start;
+      regData.TestPartitionEnd = ProblemData.TestPartition.End;
+
+      List<List<double>> data = new List<List<double>>();
+      foreach (var variable in ProblemData.Dataset.DoubleVariables) {
+        data.Add(ProblemData.Dataset.GetDoubleValues(variable).ToList());
+      }
+      regData.Values = Transformation(data);
+
+      return regData;
+    }
+
+    public static double[,] Transformation(List<List<double>> data) {
+      if (!data.All(x => x.Count.Equals(data.First().Count)))
+        throw new ArgumentException("Can't create jagged array.");
+      double[,] values = new double[data.First().Count, data.Count];
+      for (int i = 0; i < values.GetLength(0); i++) {
+        for (int j = 0; j < values.GetLength(1); j++) {
+          values[i, j] = data[j][i];
+        }
+      }
+      return values;
+    }
   }
 }