Changeset 15848 for branches/2906_Transformations/HeuristicLab.Problems.DataAnalysis/3.4/Implementation

Timestamp:

03/20/18 12:28:16 (7 years ago)

Author:

pfleck

Message:

#2906 Added TransformedModelView, implemented "remove virtual columns"

File:

• branches/2906_Transformations/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/DataAnalysisProblemData.cs (modified) (2 diffs)

branches/2906_Transformations/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/DataAnalysisProblemData.cs

@@ -273 +273 @@
     }
 
-    public static IDataset InverseTransform(IDataset dataset, IEnumerable<IDataAnalysisTransformation> transformations) {
+    public static IDataset InverseTransform(IDataset dataset, IEnumerable<IDataAnalysisTransformation> transformations, bool removeVirtualVariables = true) {
       var modifiableDataset = ((Dataset)dataset).ToModifiable();
 
-      foreach (var transformation in transformations.Reverse()) {
+      var transformationsStack = new Stack<IDataAnalysisTransformation>(transformations);
+      while (transformationsStack.Any()) {
+        var transformation = transformationsStack.Pop();
         var trans = (ITransformation<double>)transformation.Transformation;
 
@@ -283 +285 @@
         var originalData = trans.InverseApply(transformedData).ToList();
         modifiableDataset.ReplaceVariable(transformation.OriginalVariable, originalData);
+
+        bool transformedVariablePending = transformationsStack.Any(x => x.OriginalVariable == transformation.TransformedVariable);
+        if (removeVirtualVariables && !transformedVariablePending)
+          modifiableDataset.RemoveVariable(transformation.TransformedVariable);
       }