org.openimaj.math.statistics.distribution

Interface MultivariateGaussian

All Superinterfaces:

MultivariateDistribution

All Known Implementing Classes:

AbstractMultivariateGaussian, CachingMultivariateGaussian, DiagonalMultivariateGaussian, FullMultivariateGaussian, SphericalMultivariateGaussian

public interface MultivariateGaussian
extends MultivariateDistribution

Interface describing a multivariate gaussian distribution

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Method Summary

Modifier and Type	Method and Description
Jama.Matrix	getCovariance() Get the covariance
double	getCovariance(int row, int column) Get a covariance value from the covariance matrix.
Jama.Matrix	getMean() Get the mean
int	numDims() Get the dimensionality

Methods inherited from interface org.openimaj.math.statistics.distribution.MultivariateDistribution

estimateLogProbability, estimateLogProbability, estimateProbability, sample, sample

Method Detail

getCovariance

Jama.Matrix getCovariance()

Get the covariance

Returns:

the covariance

getMean

Jama.Matrix getMean()

Get the mean

Returns:

the mean

numDims

int numDims()

Get the dimensionality

Returns:

number of dimensions

getCovariance

double getCovariance(int row,
                     int column)

Get a covariance value from the covariance matrix.

This method is provided for efficiency as not all implementations will store the full matrix, and it would be wasteful to create it each time a value is needed.

Parameters:

row - the row of the matrix value to get

column - the column of the matrix value to get

Returns:

the covariance at the given row and column