Class VectorialMean
- java.lang.Object
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- org.apache.commons.math.stat.descriptive.moment.VectorialMean
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- All Implemented Interfaces:
java.io.Serializable
public class VectorialMean extends java.lang.Object implements java.io.Serializable
Returns the arithmetic mean of the available vectors.- Since:
- 1.2
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description VectorialMean(int dimension)
Constructs a VectorialMean.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object obj)
long
getN()
Get the number of vectors in the sample.double[]
getResult()
Get the mean vector.int
hashCode()
void
increment(double[] v)
Add a new vector to the sample.
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Method Detail
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increment
public void increment(double[] v) throws DimensionMismatchException
Add a new vector to the sample.- Parameters:
v
- vector to add- Throws:
DimensionMismatchException
- if the vector does not have the right dimension
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getResult
public double[] getResult()
Get the mean vector.- Returns:
- mean vector
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getN
public long getN()
Get the number of vectors in the sample.- Returns:
- number of vectors in the sample
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in classjava.lang.Object
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