Changeset 14350 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Formatters

Timestamp:

10/23/16 09:22:49 (8 years ago)

Author:

gkronber

Message:

#2687: added support for lagged variables to infix parser and formatter

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Formatters/InfixExpressionFormatter.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Formatters/InfixExpressionFormatter.cs

@@ -110 +110 @@
       } else {
         // no subtrees
-        if (node.Symbol is Variable) {
+        if (node.Symbol is LaggedVariable) {
+          var varNode = node as LaggedVariableTreeNode;
+          if (!varNode.Weight.IsAlmost(1.0)) {
+            strBuilder.Append("(");
+            strBuilder.AppendFormat(CultureInfo.InvariantCulture, "{0}", varNode.Weight);
+            strBuilder.Append("*");
+          }
+          strBuilder.Append("LAG(");
+          if (varNode.VariableName.Contains("'")) {
+            strBuilder.AppendFormat("\"{0}\"", varNode.VariableName);
+          } else {
+            strBuilder.AppendFormat("'{0}'", varNode.VariableName);
+          }
+          strBuilder.Append(", ")
+            .AppendFormat(CultureInfo.InvariantCulture, "{0}", varNode.Lag)
+            .Append(")");
+        } else if (node.Symbol is Variable) {
           var varNode = node as VariableTreeNode;
           if (!varNode.Weight.IsAlmost(1.0)) {
@@ -130 +146 @@
             strBuilder.AppendFormat(CultureInfo.InvariantCulture, "{0}", constNode.Value);
           else
-            strBuilder.AppendFormat(CultureInfo.InvariantCulture, "({0})", constNode.Value);     // (-1)
+            strBuilder.AppendFormat(CultureInfo.InvariantCulture, "({0})", constNode.Value); // (-1
         }
       }