Package org.apache.commons.math3.ml.neuralnet.twod.util

Class QuantizationError

java.lang.Object
org.apache.commons.math3.ml.neuralnet.twod.util.QuantizationError
All Implemented Interfaces:
MapDataVisualization
public class QuantizationError extends Object implements MapDataVisualization
Computes the quantization error histogram. Each bin will contain the average of the distances between samples mapped to the corresponding unit and the weight vector of that unit.
Since:
3.6

  • Constructor Details

    • QuantizationError

      public QuantizationError(DistanceMeasure distance)
      Parameters:
      distance - Distance.

  • Method Details

    • computeImage

      public double[][] computeImage(NeuronSquareMesh2D map, Iterable<double[]> data)
      Creates an image of the data metrics when represented by the map.
      Specified by:
      computeImage in interface MapDataVisualization
      Parameters:
      map - Map.
      data - Data.
      Returns:
      a 2D-array (in row major order) representing the metrics.