at.tuwien.ifs.somtoolbox.layers.metrics
Class MissingValueMetricWrapper
java.lang.Object
at.tuwien.ifs.somtoolbox.layers.metrics.AbstractMetric
at.tuwien.ifs.somtoolbox.layers.metrics.MissingValueMetricWrapper
- All Implemented Interfaces:
- DistanceMetric, Comparable<DistanceMetric>
public class MissingValueMetricWrapper
- extends AbstractMetric
A wrapper class around other distance metrics, modifying the distance computation in such a way that only vector
attributes that are not missing (indicated by InputData.MISSING_VALUE
are considered.
When instantiating using the empty constructor MissingValueMetricWrapper()
the default metric
DEFAULT_METRIC
is used.
- Version:
- $Id: MissingValueMetricWrapper.java 3583 2010-05-21 10:07:41Z mayer $
- Author:
- Rudolf Mayer
Method Summary |
double |
distance(double[] vector1,
double[] vector2)
Calculates the distance between two vectors provided by argument vector1 and vector2 . |
void |
setMetric(DistanceMetric metric)
|
void |
setMetricParams(String metricParamString)
Empty implementation, subclasses needing to set parameters have to override this class. |
Methods inherited from class at.tuwien.ifs.somtoolbox.layers.metrics.AbstractMetric |
checkDimensions, checkDimensions, compareTo, distance, distance, distance, distance, distance, distance, distance, distance, instantiate, instantiateNice, meanVector, performanceTest, transformValue, transformVector |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DEFAULT_METRIC
private static final L2Metric DEFAULT_METRIC
metric
private DistanceMetric metric
MissingValueMetricWrapper
public MissingValueMetricWrapper()
MissingValueMetricWrapper
public MissingValueMetricWrapper(DistanceMetric metric)
distance
public double distance(double[] vector1,
double[] vector2)
throws MetricException
- Description copied from interface:
DistanceMetric
- Calculates the distance between two vectors provided by argument
vector1
and vector2
. A
MetricException
is thrown, if the dimensionalities of the two vectors differ.
- Specified by:
distance
in interface DistanceMetric
- Specified by:
distance
in class AbstractMetric
- Parameters:
vector1
- first vector.vector2
- second vector.
- Returns:
- the distance between
vector1
and vector2
.
- Throws:
MetricException
- if the dimensionalities of the two vectors differ.- See Also:
DistanceMetric.distance(double[], double[])
setMetricParams
public void setMetricParams(String metricParamString)
throws SOMToolboxException
- Description copied from class:
AbstractMetric
- Empty implementation, subclasses needing to set parameters have to override this class.
- Specified by:
setMetricParams
in interface DistanceMetric
- Overrides:
setMetricParams
in class AbstractMetric
- Throws:
SOMToolboxException
setMetric
public void setMetric(DistanceMetric metric)