Changeset 6506

Timestamp:

07/04/11 22:17:22 (13 years ago)

Author:

abeham

Message:

#1571

• fixed bug in the Polynomial*PositionManipulator
• updated test case

Location:

trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3

Files:

• Manipulators/PolynomialAllPositionManipulator.cs (modified) (1 diff)
• Manipulators/PolynomialOnePositionManipulator.cs (modified) (1 diff)
• Tests/PolynomialAllPositionManipulatorTest.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Manipulators/PolynomialAllPositionManipulator.cs

@@ -87 +87 @@
         if (u < 0.5) {
           delta = Math.Pow(2 * u, 1.0 / (contiguity.Value + 1)) - 1.0;
-        } else if (u > 0.5) {
-          delta = 1.0 - Math.Pow(2.0 - 2.0 * u, 1.0 / contiguity.Value + 1);
-        } else if (u == 0.5) delta = 0;
+        } else if (u >= 0.5) {
+          delta = 1.0 - Math.Pow(2.0 - 2.0 * u, 1.0 / (contiguity.Value + 1));
+        }
 
         vector[index] += delta * maxManipulation.Value;

trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Manipulators/PolynomialOnePositionManipulator.cs

@@ -89 +89 @@
       if (u < 0.5) {
         delta = Math.Pow(2 * u, 1.0 / (contiguity + 1)) - 1.0;
-      } else if (u > 0.5) {
-        delta = 1.0 - Math.Pow(2.0 - 2.0 * u, 1.0 / contiguity + 1);
-      } else delta = 0;
+      } else if (u >= 0.5) {
+        delta = 1.0 - Math.Pow(2.0 - 2.0 * u, 1.0 / (contiguity + 1));
+      }
 
       return delta;

trunk/sources/HeuristicLab.Encodings.RealVectorEncoding/3.3/Tests/PolynomialAllPositionManipulatorTest.cs

@@ -92 +92 @@
       random.DoubleNumbers = new double[] { 0.2, 0.7, 0.8, 0.01, 0.1 };
       parent = new RealVector(new double[] { 0.2, 0.2, 0.3, 0.5, 0.1 });
-      expected = new RealVector(new double[] { 0.120213215256006, 0.336631954950876, 0.474551336679454, 0.322759240811056, -0.0182075293954083 });
+      expected = new RealVector(new double[] { 0.120213215256006, 0.249415354697564, 0.379786784743994, 0.322759240811056, -0.0182075293954083 });
       contiguity = new DoubleValue(0.8);
       maxManipulation = new DoubleValue(0.2);
@@ -106 +106 @@
       try {
         PolynomialAllPositionManipulator.Apply(random, parent, contiguity, maxManipulation);
-      }
-      catch (System.ArgumentException) {
+      } catch (System.ArgumentException) {
         exceptionFired = true;
       }