empyrean.SessionDiff

class SessionDiff(reduced_chi2_delta, iterations_delta, n_observations_delta, update_norm_current, update_norm_prior)

Bases: object

Pairwise diagnostic between two fits in the same session.

Methods

__init__(reduced_chi2_delta, ...)

Attributes

reduced_chi2_delta	Δ reduced χ² (positive ⇒ current fit is worse).
iterations_delta	Δ iteration count between current and prior fits.
n_observations_delta	Δ number of observations used (negative when masked between refines).
update_norm_current	Final update-norm convergence metric on the current fit.
update_norm_prior	Final update-norm convergence metric on the prior fit.

Parameters:

• reduced_chi2_delta (float)

• iterations_delta (int)

• n_observations_delta (int)

• update_norm_current (float)

• update_norm_prior (float)

reduced_chi2_delta: float

Δ reduced χ² (positive ⇒ current fit is worse).

iterations_delta: int

Δ iteration count between current and prior fits.

n_observations_delta: int

Δ number of observations used (negative when masked between refines).

update_norm_current: float

Final update-norm convergence metric on the current fit.

update_norm_prior: float

Final update-norm convergence metric on the prior fit.