Changeset 18086 for branches/2521_ProblemRefactoring/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Feynman/FeynmanDescriptor.cs

Timestamp:

11/19/21 16:07:45 (2 years ago)

Author:

mkommend

Message:

#2521: Merged trunk changes into branch.

Location:

branches/2521_ProblemRefactoring/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Feynman

Files:

• . (copied) (copied from trunk/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Feynman)
• FeynmanDescriptor.cs (modified) (2 diffs)

branches/2521_ProblemRefactoring/HeuristicLab.Problems.Instances.DataAnalysis/3.3/Regression/Feynman/FeynmanDescriptor.cs

@@ -4 +4 @@
 using System.Text;
 using System.Threading.Tasks;
+using HeuristicLab.Common;
+using HeuristicLab.Core;
+using HeuristicLab.Random;
 
 namespace HeuristicLab.Problems.Instances.DataAnalysis {
@@ -14 +17 @@
     }
 
+    public List<double> GetNoisyTarget(List<double> target, IRandom rand) {
+      if (noiseRatio == null) return null;
+
+      var targetNoise = new List<double>();
+      var sigmaNoise = Math.Sqrt(noiseRatio.Value) * target.StandardDeviationPop();
+      targetNoise.AddRange(target.Select(md => md + NormalDistributedRandomPolar.NextDouble(rand, 0, sigmaNoise)));
+      return targetNoise;
+
+    }
+
     protected override int TrainingPartitionStart { get { return 0; } }
     protected override int TrainingPartitionEnd { get { return 100; } }