Changeset 13001

Timestamp:

10/14/15 17:46:45 (7 years ago)

Author:

gkronber

Message:

#1736: implemented IStringConvertibleValue interface for ConstantRegressionModel (so a view is automatically available)

File:

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

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/ConstantRegressionModel.cs

@@ -20 +20 @@
 #endregion
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using HeuristicLab.Common;
 using HeuristicLab.Core;
+using HeuristicLab.Data;
 using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
 
@@ -29 +31 @@
   [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 {
+  public class ConstantRegressionModel : NamedItem, IRegressionModel, IStringConvertibleValue {
     [Storable]
-    protected double constant;
+    private double constant;
     public double Constant {
       get { return constant; }
+      // setter not implemented because manipulation of the constant is not allowed
     }
 
@@ -49 +52 @@
       this.description = ItemDescription;
       this.constant = constant;
+      this.ReadOnly = true; // changing a constant regression model is not supported
     }
 
@@ -58 +62 @@
       return new ConstantRegressionSolution(this, new RegressionProblemData(problemData));
     }
+
+    public override string ToString() {
+      return string.Format("Constant: {0}", GetValue());
+    }
+
+    #region IStringConvertibleValue
+    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
+    }
+
+    public string GetValue() {
+      return string.Format("{0:E4}", constant);
+    }
+
+    public bool SetValue(string value) {
+      throw new NotSupportedException(); // changing a constant regression model is not supported
+    }
+
+    public event EventHandler ValueChanged;
+    #endregion
   }
 }