Changeset 14345 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols

Timestamp:

10/21/16 17:59:36 (8 years ago)

Author:

gkronber

Message:

#2690: implemented methods to generate symbolic expression tree solutions for decision tree models (random forest and gradient boosted) as well as views which make it possible to inspect each of the individual trees in a GBT and RF solution

Location:

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols

Files:

• VariableCondition.cs (modified) (1 diff)
• VariableConditionTreeNode.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/VariableCondition.cs

@@ -149 +149 @@
         }
       }
+    }
+
+    /// <summary>
+    /// Flag to indicate if the interpreter should ignore the slope parameter (introduced for representation of expression trees)
+    /// </summary>
+    [Storable]
+    private bool ignoreSlope;
+    public bool IgnoreSlope {
+      get { return ignoreSlope; }
+      set { ignoreSlope = value; }
     }
 

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Symbols/VariableConditionTreeNode.cs

@@ -96 +96 @@
 
     public override string ToString() {
-      if (slope.IsAlmost(0.0))
+      if (slope.IsAlmost(0.0) || Symbol.IgnoreSlope) {
+        return variableName + " < " + threshold.ToString("E4");
+      } else {
         return variableName + " > " + threshold.ToString("E4") + Environment.NewLine +
-          "slope: " + slope.ToString("E4");
-      else
-        return variableName + " > " + threshold.ToString("E4");
+               "slope: " + slope.ToString("E4");
+      }
     }
   }