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java.lang.Objectorg.apache.commons.math.stat.descriptive.moment.VectorialCovariance
public class VectorialCovariance
Returns the covariance matrix of the available vectors.
Constructor Summary | |
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VectorialCovariance(int dimension,
boolean isBiasCorrected)
Constructs a VectorialCovariance. |
Method Summary | |
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void |
clear()
Clears the internal state of the Statistic |
boolean |
equals(Object obj)
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long |
getN()
Get the number of vectors in the sample. |
RealMatrix |
getResult()
Get the covariance matrix. |
int |
hashCode()
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void |
increment(double[] v)
Add a new vector to the sample. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public VectorialCovariance(int dimension, boolean isBiasCorrected)
dimension
- vectors dimensionisBiasCorrected
- if true, computed the unbiased sample covariance,
otherwise computes the biased population covarianceMethod Detail |
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public void increment(double[] v) throws DimensionMismatchException
v
- vector to add
DimensionMismatchException
- if the vector does not have the right dimensionpublic RealMatrix getResult()
public long getN()
public void clear()
public int hashCode()
hashCode
in class Object
public boolean equals(Object obj)
equals
in class Object
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