CosmoFit.EBOSSELGLikelihood¶

class CosmoFit.EBOSSELGLikelihood(cosmology, version='dr16')[source]¶

Bases: TabulatedBAOLikelihood

eBOSS DR16 emission-line galaxies, D_V/r_d at z_eff = 0.845, as a tabulated likelihood.

Warning

Overlaps "desi" – DESI’s ELG sample succeeds this one over much of the same footprint. It does not conflict with "sdss_bao": eBOSS’s own DR16 consensus combines the ELG sample with the LRG and QSO ones as independent tracers, and so does every reference implementation.

Parameters:: version (str)

__init__(cosmology, version='dr16')¶

Parameters:: version (str)

Methods

`__init__`(cosmology[, version])
`chi2`()	`-2 log L`, so this composes with the Gaussian likelihoods it is summed with.
`log_likelihood`()	Log-likelihood at the current cosmology.
`log_likelihood_at`(values)	Interpolate the released surface at given distance ratios, with no cosmology involved.
`model`()	Predicted distance ratios, one per tabulated observable.
`predictions`()	Alias for model().
`residuals`()	Prediction minus the grid's most probable point.
`summary`()	Return a summary of the likelihood evaluation.

Attributes

`FAMILY`	Loader family, set by the subclass.
`LABEL`	Display name, set by the subclass.
`n_data`	Number of data points.
`name_and_size`	Name together with the number of data points.