Changeset 13089 for branches/ClassificationModelComparison/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/ConstantRegressionModel.cs

Timestamp:

10/29/15 19:48:17 (9 years ago)

Author:

gkronber

Message:

#1998

• deleted obsolete version of OneR algorithm (also does perform worse than mkommend's implementation in my tests)
• reused the ConstantRegressionModel as ConstantClassificationModel (OK?)
• fixed a few strings here and there

File:

• branches/ClassificationModelComparison/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/ConstantRegressionModel.cs (modified) (4 diffs)

branches/ClassificationModelComparison/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/ConstantRegressionModel.cs

@@ -30 +30 @@
 namespace HeuristicLab.Problems.DataAnalysis {
   [StorableClass]
-  [Item("Constant Regression Model", "A model that always returns the same constant value regardless of the presented input data.")]
-  public class ConstantRegressionModel : NamedItem, IRegressionModel, IStringConvertibleValue {
+  [Item("Constant Model", "A model that always returns the same constant value regardless of the presented input data.")]
+  // TODO this class should be renamed, since it is also used to handle the classification case now
+  public class ConstantRegressionModel : NamedItem, IRegressionModel, IClassificationModel, IStringConvertibleValue {
     [Storable]
     private double constant;
@@ -59 +60 @@
     }
 
+    public IEnumerable<double> GetEstimatedClassValues(IDataset dataset, IEnumerable<int> rows) {
+      return GetEstimatedValues(dataset, rows);
+    }
+
     public IRegressionSolution CreateRegressionSolution(IRegressionProblemData problemData) {
       return new ConstantRegressionSolution(this, new RegressionProblemData(problemData));
+    }
+
+    public IClassificationSolution CreateClassificationSolution(IClassificationProblemData problemData) {
+      return new ConstantClassificationSolution(this, new ClassificationProblemData(problemData));
     }
 
@@ -70 +79 @@
     public bool ReadOnly { get; private set; }
     public bool Validate(string value, out string errorMessage) {
-      throw new NotSupportedException(); // changing a constant regression model is not supported
+      throw new NotSupportedException(); // changing a constant model is not supported
     }
 
@@ -78 +87 @@
 
     public bool SetValue(string value) {
-      throw new NotSupportedException(); // changing a constant regression model is not supported
+      throw new NotSupportedException(); // changing a constant model is not supported
     }
 
     public event EventHandler ValueChanged;
     #endregion
+
   }
 }