Changeset 7735

Timestamp:

04/17/12 13:48:11 (12 years ago)

Author:

sforsten

Message:

#1830:

• set the size of the cache in the constructor of RegressionSolution
• don't convert the IEnumerable in CalculateResults to arrays anymore

Location:

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression

Files:

• RegressionSolution.cs (modified) (1 diff)
• RegressionSolutionBase.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionSolution.cs

@@ -44 +44 @@
     protected RegressionSolution(IRegressionModel model, IRegressionProblemData problemData)
       : base(model, problemData) {
-      evaluationCache = new Dictionary<int, double>();
+      evaluationCache = new Dictionary<int, double>(problemData.Dataset.Rows);
     }
 

trunk/sources/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionSolutionBase.cs

@@ -21 +21 @@
 
 using System.Collections.Generic;
-using System.Linq;
 using HeuristicLab.Common;
 using HeuristicLab.Data;
@@ -166 +165 @@
 
     protected void CalculateResults() {
-      double[] estimatedTrainingValues = EstimatedTrainingValues.ToArray(); // cache values
-      double[] originalTrainingValues = ProblemData.Dataset.GetDoubleValues(ProblemData.TargetVariable, ProblemData.TrainingIndizes).ToArray();
-      double[] estimatedTestValues = EstimatedTestValues.ToArray(); // cache values
-      double[] originalTestValues = ProblemData.Dataset.GetDoubleValues(ProblemData.TargetVariable, ProblemData.TestIndizes).ToArray();
+      IEnumerable<double> estimatedTrainingValues = EstimatedTrainingValues; // cache values
+      IEnumerable<double> originalTrainingValues = ProblemData.Dataset.GetDoubleValues(ProblemData.TargetVariable, ProblemData.TrainingIndizes);
+      IEnumerable<double> estimatedTestValues = EstimatedTestValues; // cache values
+      IEnumerable<double> originalTestValues = ProblemData.Dataset.GetDoubleValues(ProblemData.TargetVariable, ProblemData.TestIndizes);
 
       OnlineCalculatorError errorState;