Changeset 14228 for trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Vladislavleva/RationalPolynomialThreeDimensional.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/Vladislavleva/RationalPolynomialThreeDimensional.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Vladislavleva/RationalPolynomialThreeDimensional.cs

@@ -24 +24 @@
 using System.Linq;
 using HeuristicLab.Common;
+using HeuristicLab.Random;
 
 namespace HeuristicLab.Problems.Instances.DataAnalysis {
@@ -46 +47 @@
     protected override int TestPartitionStart { get { return 300; } }
     protected override int TestPartitionEnd { get { return 300 + (15 * 12 * 15); } }
+    public int Seed { get; }
 
+    public RationalPolynomialThreeDimensional() : this((int)DateTime.Now.Ticks) { }
+
+    public RationalPolynomialThreeDimensional(int seed) : base() {
+      Seed = seed;
+    }
     protected override List<List<double>> GenerateValues() {
       List<List<double>> data = new List<List<double>>();
 
       int n = 300;
-      data.Add(ValueGenerator.GenerateUniformDistributedValues(n, 0.05, 2).ToList());
-      data.Add(ValueGenerator.GenerateUniformDistributedValues(n, 1, 2).ToList());
-      data.Add(ValueGenerator.GenerateUniformDistributedValues(n, 0.05, 2).ToList());
+      var rand = new MersenneTwister((uint)Seed);
+      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), n, 0.05, 2).ToList());
+      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), n, 1, 2).ToList());
+      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), n, 0.05, 2).ToList());
 
       List<List<double>> testData = new List<List<double>>() {