Changeset 12135 for trunk/sources/HeuristicLab.Analysis/3.3/Statistics

Timestamp:

03/05/15 10:38:34 (10 years ago)

Author:

gkronber

Message:

#2351: sigma as parameter of the density estimation routine

File:

• trunk/sources/HeuristicLab.Analysis/3.3/Statistics/NormalDistribution.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Analysis/3.3/Statistics/NormalDistribution.cs

@@ -37 +37 @@
     }
 
-    // based on the idea from http://www.statmethods.net/graphs/density.html
-    public static List<Tuple<double, double>> Density(double[] x, int nrOfPoints, double stepWidth) {
+
+    // the scale (sigma) of the kernel is a parameter
+    public static List<Tuple<double, double>> Density(double[] x, int nrOfPoints, double stepWidth, double sigma = 1.0) {
       // calculate grid for which to estimate the density
       double[] newX = new double[nrOfPoints];
@@ -53 +54 @@
       }
 
-      // the scale (std.-dev. of the kernel is a parameter)
-      var sigma = 1.0; // TODO allow configuration in the view
       // for each of the points for which we want to calculate the density
       // we sum up all the densities of the observed points assuming they are at the center of a normal distribution