Changeset 18100 for branches/3140_NumberSymbol/HeuristicLab.Algorithms.DataAnalysis/3.4/NonlinearRegression/NonlinearRegression.cs

Timestamp:

12/01/21 13:40:55 (3 years ago)

Author:

chaider

Message:

#3140

• some more refactoring
• added possibility to set value of num nodes in infix parser
• changed displaying style of number

File:

• branches/3140_NumberSymbol/HeuristicLab.Algorithms.DataAnalysis/3.4/NonlinearRegression/NonlinearRegression.cs (modified) (2 diffs)

branches/3140_NumberSymbol/HeuristicLab.Algorithms.DataAnalysis/3.4/NonlinearRegression/NonlinearRegression.cs

@@ -123 +123 @@
       : base() {
       Problem = new RegressionProblem();
-      Parameters.Add(new FixedValueParameter<StringValue>(ModelStructureParameterName, "The function for which the parameters must be fit (only numeric constants are tuned).", new StringValue("1.0 * x*x + 0.0")));
+      Parameters.Add(new FixedValueParameter<StringValue>(ModelStructureParameterName, "The function for which the parameters must be fit (only numeric constants are tuned).", new StringValue("<num> * x*x + 0.0")));
       Parameters.Add(new FixedValueParameter<IntValue>(IterationsParameterName, "The maximum number of iterations for constants optimization.", new IntValue(200)));
       Parameters.Add(new FixedValueParameter<IntValue>(RestartsParameterName, "The number of independent random restarts (>0)", new IntValue(10)));
@@ -267 +267 @@
       // initialize constants randomly
       if (rand != null) {
-        foreach (var node in tree.IterateNodesPrefix().OfType<ConstantTreeNode>()) {
+        foreach (var node in tree.IterateNodesPrefix().OfType<NumberTreeNode>()) {
           double f = Math.Exp(NormalDistributedRandom.NextDouble(rand, 0, 1));
           double s = rand.NextDouble() < 0.5 ? -1 : 1;