11.2.2.1. astroML.density_estimation.XDGMM

class astroML.density_estimation.XDGMM(n_components, max_iter=100, tol=1e-05, verbose=False, random_state=None)[source]

Extreme Deconvolution

Fit an extreme deconvolution (XD) model to the data

Parameters
n_components: integer

number of gaussian components to fit to the data

max_iter: integer (optional)

number of EM iterations to perform (default=100)

tol: float (optional)

stopping criterion for EM iterations (default=1E-5)

Notes

This implementation follows Bovy et al. arXiv 0905.2979

Methods

fit(X, Xerr[, R])

Fit the XD model to data

logL(X, Xerr)

Compute the log-likelihood of data given the model

logprob_a(X, Xerr)

Evaluate the probability for a set of points

sample

__init__(n_components, max_iter=100, tol=1e-05, verbose=False, random_state=None)[source]

Initialize self. See help(type(self)) for accurate signature.