Changeset 16240 for branches/2915-AbsoluteSymbol/HeuristicLab.Problems.DataAnalysis.Symbolic

Timestamp:

10/18/18 16:16:31 (6 years ago)

Author:

gkronber

Message:

#2915: merged changes in the trunk up to current HEAD (r15951:16232) into the branch

Location:

branches/2915-AbsoluteSymbol

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/DerivativeCalculator.cs (copied) (copied from trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/DerivativeCalculator.cs)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/LinearModelToTreeConverter.cs (modified) (1 diff)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/TreeSimplifier.cs (modified) (1 diff)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Hashing (copied) (copied from trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Hashing)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4.csproj (modified) (2 diffs)

branches/2915-AbsoluteSymbol/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/LinearModelToTreeConverter.cs

@@ -37 +37 @@
       string[] variableNames, double[] coefficients,
       double @const = 0) {
+
       if (factorCoefficients.Length == 0 && coefficients.Length == 0) throw new ArgumentException();
-      ISymbolicExpressionTree p1 = null;
+
+      // Create tree for double variables
+      ISymbolicExpressionTree tree = null;      
       if (coefficients.Length > 0) {
-        p1 = CreateTree(variableNames, new int[variableNames.Length], coefficients, @const);
-        if (factorCoefficients.Length == 0)
-          return p1;
+        tree = CreateTree(variableNames, new int[variableNames.Length], coefficients, @const);
+        if (factorCoefficients.Length == 0) return tree;
       }
+
+      // Create tree for string variables
+      ISymbolicExpressionTree factorTree = null;      
       if (factorCoefficients.Length > 0) {
-        var p2 = CreateTree(factors, factorCoefficients);
-        if (p1 == null) return p2;
+        factorTree = CreateTree(factors, factorCoefficients, @const);
+        if (tree == null) return factorTree;  
+      }
 
-        // combine
-        ISymbolicExpressionTreeNode add = p1.Root.GetSubtree(0).GetSubtree(0);
-        foreach (var binFactorNode in p2.IterateNodesPrefix().OfType<BinaryFactorVariableTreeNode>())
-          add.AddSubtree(binFactorNode);
-        return p1;
-      }
+      // Combine both trees
+      ISymbolicExpressionTreeNode add = tree.Root.GetSubtree(0).GetSubtree(0);
+      foreach (var binFactorNode in factorTree.IterateNodesPrefix().OfType<BinaryFactorVariableTreeNode>())
+        add.InsertSubtree(add.SubtreeCount - 1, binFactorNode);
+      return tree;
+
       throw new ArgumentException();
     }

branches/2915-AbsoluteSymbol/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/TreeSimplifier.cs

@@ -1236 +1236 @@
         // $ * 1.0 => $
         return a;
+      } else if (IsConstant(b) && ((ConstantTreeNode)b).Value.IsAlmost(0.0)) {
+        return MakeConstant(0);
       } else if (IsConstant(b) && IsVariableBase(a)) {
         // multiply constants into variables weights

branches/2915-AbsoluteSymbol/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4.csproj

@@ -139 +139 @@
     <Compile Include="Converters\LinearModelToTreeConverter.cs" />
     <Compile Include="Converters\TreeSimplifier.cs" />
+    <Compile Include="Converters\DerivativeCalculator.cs" />
     <Compile Include="Converters\TreeToAutoDiffTermConverter.cs" />
     <Compile Include="Formatters\InfixExpressionFormatter.cs" />
@@ -144 +145 @@
     <Compile Include="Formatters\SymbolicDataAnalysisExpressionMathematicaFormatter.cs" />
     <Compile Include="Formatters\SymbolicDataAnalysisExpressionCSharpFormatter.cs" />
+    <Compile Include="Hashing\HashExtensions.cs" />
+    <Compile Include="Hashing\HashUtil.cs" />
+    <Compile Include="Hashing\SymbolicExpressionTreeHash.cs" />
     <Compile Include="Importer\InfixExpressionParser.cs" />
     <Compile Include="Importer\SymbolicExpressionImporter.cs" />