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Ignore:
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:
1 edited

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  • trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Keijzer/KeijzerFunctionFive.cs

    r14185 r14228  
    2323using System.Collections.Generic;
    2424using System.Linq;
     25using HeuristicLab.Random;
    2526
    2627namespace HeuristicLab.Problems.Instances.DataAnalysis {
     
    4546    protected override int TestPartitionStart { get { return 1000; } }
    4647    protected override int TestPartitionEnd { get { return 11000; } }
     48    public int Seed { get; }
    4749
     50    public KeijzerFunctionFive() : this((int)System.DateTime.Now.Ticks) {
     51    }
     52    public KeijzerFunctionFive(int seed) : base() {
     53      Seed = seed;
     54    }
    4855    protected override List<List<double>> GenerateValues() {
    4956      List<List<double>> data = new List<List<double>>();
    50       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, -1, 1).ToList());
    51       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, 1, 2).ToList());
    52       data.Add(ValueGenerator.GenerateUniformDistributedValues(TestPartitionEnd, -1, 1).ToList());
     57      var rand = new MersenneTwister((uint)Seed);
     58
     59      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, -1, 1).ToList());
     60      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, 1, 2).ToList());
     61      data.Add(ValueGenerator.GenerateUniformDistributedValues(rand.Next(), TestPartitionEnd, -1, 1).ToList());
    5362
    5463      double x, y, z;
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