ott.tools.gaussian_mixture.gaussian_mixture.GaussianMixture

class ott.tools.gaussian_mixture.gaussian_mixture.GaussianMixture(loc, scale_params, component_weight_ob)

Gaussian Mixture model.

Parameters

• loc (Array) –

• scale_params (Array) –

• component_weight_ob (Probabilities) –

Methods

components()	List of all GMM components.
conditional_log_prob(x)	Compute the component-conditional log probability of x.
from_mean_cov_component_weights(mean, cov, ...)	Construct a GMM from means, covariances, and component weights.
from_points_and_assignment_probs(points, ...)	Estimate a GMM from points and a set of component probabilities.
from_random(rng, n_components, n_dimensions)	Construct a random GMM.
get_component(index)	Specified GMM component.
get_log_component_posterior(x)	Compute the posterior probability that x came from each component.
has_nans()	rtype bool
log_component_weights()	Log component weights probabilities.
log_prob(x)	Compute the log probability of the observations x.
sample(rng, size)	Generate samples from the distribution.

Attributes

cholesky	Cholesky decomposition of the GMM covariance matrices.
component_weight_ob	Component weight object.
component_weights	Component weights probabilities.
covariance	Covariance matrices of the GMM.
dtype	Dtype of the GMM parameters.
loc	Location parameters of the GMM.
n_components	Number of components of the GMM parameters.
n_dimensions	Number of dimensions of the GMM parameters.
scale_params	Scale parameters of the GMM.