Changeset 14228 for trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Various/SpatialCoevolution.cs

Timestamp:

08/02/16 18:09:47 (8 years ago)

Author:

gkronber

Message:

#2371: added constructors to allow specification of random seeds for randomly generated regression problem instances (primarily for unit tests)

File:

• trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Various/SpatialCoevolution.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Various/SpatialCoevolution.cs

@@ -24 +24 @@
 using System.Linq;
 using HeuristicLab.Common;
+using HeuristicLab.Random;
 
 namespace HeuristicLab.Problems.Instances.DataAnalysis {
@@ -50 +51 @@
     protected override int TestPartitionStart { get { return 676; } }
     protected override int TestPartitionEnd { get { return 1676; } }
+    public int Seed { get; }
 
+    public SpatialCoevolution() : this((int)DateTime.Now.Ticks) { }
+
+    public SpatialCoevolution(int seed) : base() {
+      Seed = seed;
+    }
     protected override List<List<double>> GenerateValues() {
       List<List<double>> data = new List<List<double>>();
@@ -57 +64 @@
       List<List<double>> trainingData = new List<List<double>>() { evenlySpacedSequence, evenlySpacedSequence };
       var combinations = ValueGenerator.GenerateAllCombinationsOfValuesInLists(trainingData).ToList();
+      var rand = new MersenneTwister((uint)Seed);
 
       for (int i = 0; i < AllowedInputVariables.Count(); i++) {
         data.Add(combinations[i].ToList());
-        data[i].AddRange(ValueGenerator.GenerateUniformDistributedValues(1000, -5, 5).ToList());
+        data[i].AddRange(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), 1000, -5, 5).ToList());
       }