Changeset 12817 for trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/Linear

Timestamp:

07/30/15 16:55:22 (9 years ago)

Author:

gkronber

Message:

#2435 reverse merge of all trunk changes for updating to alglib version 3.9.0 (r12790:12792, r12798, r12801)

Location:

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/Linear

Files:

• LinearRegression.cs (modified) (2 diffs)
• MultinomialLogitClassification.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/Linear/LinearRegression.cs

@@ -47 +47 @@
     private LinearRegression(LinearRegression original, Cloner cloner)
       : base(original, cloner) {
-
     }
     public LinearRegression()
@@ -78 +77 @@
         throw new NotSupportedException("Linear regression does not support NaN or infinity values in the input dataset.");
 
-      alglib.linearmodel lm;
-      alglib.lrreport ar;
+      alglib.linearmodel lm = new alglib.linearmodel();
+      alglib.lrreport ar = new alglib.lrreport();
       int nRows = inputMatrix.GetLength(0);
       int nFeatures = inputMatrix.GetLength(1) - 1;
-      double[] coefficients;
+      double[] coefficients = new double[nFeatures + 1]; // last coefficient is for the constant
 
       int retVal = 1;

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/Linear/MultinomialLogitClassification.cs

@@ -74 +74 @@
         throw new NotSupportedException("Multinomial logit classification does not support NaN or infinity values in the input dataset.");
 
-      alglib.logitmodel lm;
-      alglib.mnlreport rep;
+      alglib.logitmodel lm = new alglib.logitmodel();
+      alglib.mnlreport rep = new alglib.mnlreport();
       int nRows = inputMatrix.GetLength(0);
       int nFeatures = inputMatrix.GetLength(1) - 1;