Class UnifiedDistanceMatrix
- java.lang.Object
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- org.apache.commons.math3.ml.neuralnet.twod.util.UnifiedDistanceMatrix
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- All Implemented Interfaces:
MapVisualization
public class UnifiedDistanceMatrix extends Object implements MapVisualization
U-Matrix visualization of high-dimensional data projection.- Since:
- 3.6
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Constructor Summary
Constructors Constructor Description UnifiedDistanceMatrix(boolean individualDistances, DistanceMeasure distance)
Simple constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double[][]
computeImage(NeuronSquareMesh2D map)
Creates an image of themap
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Constructor Detail
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UnifiedDistanceMatrix
public UnifiedDistanceMatrix(boolean individualDistances, DistanceMeasure distance)
Simple constructor.- Parameters:
individualDistances
- Iftrue
, the 8 individual inter-units distances will becomputed
. They will be stored in additional pixels around each of the original units of the 2D-map. The additional pixels that lie along a "diagonal" are shared by two pairs of units: their value will be set to the average distance between the units belonging to each of the pairs. The value zero will be stored in the pixel corresponding to the location of a unit of the 2D-map.
Iffalse
, only the average distance between a unit and all its neighbours will be computed (and stored in the pixel corresponding to that unit of the 2D-map). In that case, the number of neighbours taken into account depends on the network'sneighbourhood type
.distance
- Distance.
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Method Detail
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computeImage
public double[][] computeImage(NeuronSquareMesh2D map)
Creates an image of themap
.- Specified by:
computeImage
in interfaceMapVisualization
- Parameters:
map
- Map.- Returns:
- a 2D-array (in row major order) representing the property.
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