CosmoFit.FitPlotter¶

class CosmoFit.FitPlotter(fitter)[source]¶

Bases: object

Plotting methods for a Fitter.

Parameters:: fitter (stats.fitter.Fitter) – The (already constructed) fitter to plot. MCMC- and best-fit-dependent plots require run_mcmc() / best_fit() to have been called first; the data-vs-model figures (hubble_diagram(), hz(), bao_distances()) work from fitter.cosmology as it currently stands (initial point) if neither has been run yet.

__init__(fitter)[source]¶

Methods

`__init__`(fitter)
`bao_distances`([save_path, n_draws, seed])	DESI BAO distance plot: one panel per observable type (D_M/r_d, D_H/r_d, D_V/r_d), each showing the tracers' measurements against the model curve.
`chain`([save_path])	Trace plot of every free parameter's walkers vs. MCMC step.
`cmb_lensing`([save_path])	CMB lensing bandpowers against the model.
`cmb_spectra`([save_path])	The CMB angular power spectra: measured bandpowers against the model, with a residual panel under each.
`compare_bao_distances`([other_fits, labels, ...])	DESI BAO distance plot (see `bao_distances()`) with this fit's curves and one or more other models' curves over the same tracer data.
`compare_deceleration`([other_fits, labels, ...])	Deceleration parameter q(z) (see `deceleration()`) for this fit and one or more other models on the same axes, each with its own deceleration/acceleration transition redshift z_t marked -- the standard model-vs-model transition -redshift comparison figure.
`compare_des_hubble_diagram`([other_fits, ...])	DES-SN5YR Hubble diagram (see `des_hubble_diagram()`) with this fit's curve and one or more other models' curves over the same supernova data.
`compare_growth`([other_fits, labels, ...])	fsigma8(z) growth-rate diagram (see `growth()`) with this fit's curve overlaid with one or more other models' curves over the same RSD data -- the standard model-vs-model growth-of-structure figure.
`compare_hubble_diagram`([other_fits, labels, ...])	Pantheon+ Hubble diagram (see `hubble_diagram()`) with this fit's curve and one or more other models' curves over the same supernova data -- the standard model-vs-model apparent-magnitude comparison figure.
`compare_hz`([other_fits, labels, save_path, ...])	H(z) diagram (see `hz()`) with this fit's curve overlaid with one or more other models' curves over the same Cosmic Chronometers data -- the standard model-vs-model H(z) figure.
`compare_sdss_bao_distances`([other_fits, ...])	SDSS BAO distance plot (see `sdss_bao_distances()`) with this fit's curves and one or more other models' curves over the same tracer data.
`compare_w0_wa_plane`([other_fits, labels, ...])	The (w0, wa) plane (see `w0_wa_plane()`) with several posteriors overlaid -- the "what does adding this dataset do to w0-wa?" figure, one contour set per fit.
`compare_w_of_z`([other_fits, labels, z_max, ...])	Dark-energy equation of state w(z) (see `w_of_z()`) for this fit and one or more other models on the same axes.
`corner`([burnin, save_path])	Corner (triangle) plot of the free-parameter posterior.
`deceleration`([z_max, save_path, n_draws, seed])	Deceleration parameter q(z) = -1 + (1+z) E'(z)/E(z), with a posterior band, marking the deceleration/acceleration transition redshift z_t where q(z) = 0.
`des_hubble_diagram`([save_path, n_draws, seed])	DES-SN5YR Hubble diagram: distance modulus vs. redshift, with a residuals sub-panel.
`eboss_surface`([dataset, save_path])	An eBOSS DR16 tabulated BAO likelihood, drawn as the surface it actually is, with the current model's prediction on it.
`growth`([save_path, n_draws, seed])	fsigma8(z) growth-rate diagram: RSD measurements (e.g. the "Gold-2018" compilation) against the model's fsigma8(z) curve (`fsigma8()`).
`hubble_diagram`([save_path, n_draws, seed])	Pantheon+ Hubble diagram: corrected apparent magnitude vs. redshift, with a residuals sub-panel.
`hz`([save_path, n_draws, seed])	Cosmic Chronometer H(z) diagram: expansion-rate measurements vs. redshift against the model H(z) curve.
`lowz_bao_distances`([save_path, n_draws, seed])	Low-redshift BAO plot (6dFGS z=0.106, SDSS DR7 MGS z=0.15): one panel per observable type against the model curve.
`planck_residuals`([save_path])	Standardized-residual ("pull") plot for the Planck distance-prior vector (R, l_A, omega_b_h2):
`sdss_bao_distances`([save_path, n_draws, seed])	SDSS BAO distance plot (BOSS DR12 + eBOSS DR16 LRG/QSO): one panel per observable type (D_M/r_d, D_H/r_d), each showing the tracers' measurements against the model curve.
`union3_hubble_diagram`([save_path, n_draws, seed])	Union3 Hubble diagram: binned distance modulus vs. redshift, with a residuals sub-panel.
`w0_wa_plane`([burnin, levels, bins, smooth, ...])	The (w0, wa) plane: this fit's 2D posterior contours on top of the four dark-energy regions -- phantom, quintessence, quintom-A, quintom-B -- with LCDM marked at (-1, 0).
`w_of_z`([z_max, save_path, n_draws, seed])	Dark-energy equation-of-state evolution w(z), with a posterior band and the LCDM reference line w = -1 -- the standard w0-wa dark-energy figure.