Class GaussWeight
- java.lang.Object
-
- elki.math.linearalgebra.pca.weightfunctions.GaussWeight
-
- All Implemented Interfaces:
WeightFunction
public final class GaussWeight extends java.lang.Object implements WeightFunction
Gaussian weight function, scaled such that the result it 0.1 when distance equals the maximum, using \( \exp(-2.3025850929940455 \frac{\text{dist}^2}{\max^2}) \).- Since:
- 0.2
- Author:
- Erich Schubert
-
-
Constructor Summary
Constructors Constructor Description GaussWeight()
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getWeight(double distance, double max, double stddev)
Get Gaussian weight. stddev is not used, scaled using max.
-
-
-
Method Detail
-
getWeight
public double getWeight(double distance, double max, double stddev)
Get Gaussian weight. stddev is not used, scaled using max.- Specified by:
getWeight
in interfaceWeightFunction
- Parameters:
distance
- distance of the query pointmax
- maximum distance of all included pointsstddev
- standard deviation (i.e. quadratic mean / RMS) of the included points- Returns:
- weight for the query point
-
-