skretrieval.retrieval.prior.ConstantDiagonalPrior

class skretrieval.retrieval.prior.ConstantDiagonalPrior(value: float = 1.0)

Bases: BasePrior

A prior that is constant along the diagonal. The initial state is pulled from the StateVectorElement upon initialization.

Parameters:

value (float, optional) – _description_, by default 1.0

__init__(value: float = 1.0)

A prior that is constant along the diagonal. The initial state is pulled from the StateVectorElement upon initialization.

Parameters:

value (float, optional) – _description_, by default 1.0

Methods

__init__([value])	A prior that is constant along the diagonal.
init(sv[, sv_slice])

Attributes

inverse_covariance	The inverse covariance of the prior state.
precision_factor	Return R such that R.T @ R is the prior precision.
state	The prior state $x_a$ of size (n,)

property inverse_covariance

The inverse covariance of the prior state.

The returned matrix has shape (n, n).

property precision_factor

Return R such that R.T @ R is the prior precision.

Structured priors override this to retain their sparse residual form. The fallback is intended for small or dense custom priors.

property state

The prior state $x_a$ of size (n,)