Module model_types 

crate::model_types → fit-result / penalty-spec carriers now in gam-solve, plus the finite-validation helper from gam-problem that gam-solve only re-exports crate-internally.

Structs

ActiveLinearConstraintBlock

Active row block of the joint linear inequality constraint matrix at the converged inner iterate.

AdaptiveRegularizationOptions

CertifiedRung

The rung a CERTIFICATE was decided against, in owned form (#2530).

CurvatureFloorClearance

Analytic optimality certificate at the returned optimum (#934).

Dispersion

A validated response-level dispersion phi.

DisplayCoefficientUncertainty

A definition-consistent coefficient-uncertainty view (#2296): standard errors and (optional) covariance from the SAME definition, tagged with that definition. Produced by UnifiedFitResult::display_coefficient_uncertainty.

FitArtifacts

Post-fit artifacts needed by downstream diagnostics/inference without re-running PIRLS.

FitGeometry

Coefficient geometry retained at convergence for inference and post-fit diagnostics.

FitInference

FitOptions

FittedBlock

Inference quantities for one coefficient block.

OuterCriterionCertificate

ProjectedKktResidual

KKT residual r = grad_beta L_pen(beta_hat) at the converged inner iterate, tagged with the exact represented subspace.

RailCoordinate

One outer smoothing coordinate certified stationary-at-asymptote: it has no interior optimum (its gradient never clears the fixed bound), but the fitted model has provably reached its rail limit to within tolerance along it (#2348 Inc 1 / #2299 layer 3, #2337 Thm 2.1). The certified facts are the per-coordinate outputs of crate::rho_optimizer::asymptote_certificate::assess_coordinate.

RailedCoordinateFact

One railed coordinate together with the interval and margin it was judged against (#2530).

UnifiedFitResult

Unified fit result for all model types (standard GAM, GAMLSS, survival).

UnifiedFitResultParts

WorkingGeometry

Owned diagonal working-set evidence at convergence.

Enums

BlockRole

Role of a coefficient block within a multi-parameter model.

CoefficientCovarianceDefinition

Exact coefficient-covariance definition (#2296).

CoefficientPriorMean

Programmatic prior mean for a coefficient penalty block.

CovarianceDeclined

Why a fit that could have published a coefficient covariance deliberately did not (gam#2718, gam#2484).

CurvatureEvidence

What curvature evidence a certificate actually has (#2561).

EstimationError

A comprehensive error type for the model estimation process.

ExecutionPath

Truthful execution-path classifier for a fit’s hot inner solve (issue #1017).

FittedLinkState

InferenceCovarianceMode

Which posterior covariance definition an uncertainty surface was built from.

KktResidualSubspace

Subspace represented by a stored KKT residual.

OuterStationarityCertificate

The stationarity equation that certified an outer optimum.

PenaltySpec

A penalty specification for the public estimate API.

RailTailEvidence

What established a rail coordinate’s tail law, and the standard it cleared (#2348 Inc 5 build-out).

SmoothingCorrectionMethod

Serialized provenance of a retained smoothing-uncertainty correction.

Constants

NO_CRITERION_AT_EXACT_FIT

The one explanation every ranking surface gives for an absent criterion.

Functions

criterion_display

Render a possibly-absent criterion for human output.

ensure_finite_scalar

Public wrapper returning String errors for use outside the estimation module.

ensure_finite_scalar_estimation

is_zero_dispersion_boundary

The exact-fit Gaussian boundary, from the three quantities that define it.

saved_latent_cloglog_state_from_fit

saved_mixture_state_from_fit

saved_sas_state_from_fit

validate_all_finite

Public wrapper returning String errors for use outside the estimation module.

validate_dense_hessian_export

Validate the structural integrity of an exported penalized Hessian.

validate_explicit_dense_hessian_for_whitening

Validate that a saved penalized Hessian is an explicit dense precision matrix suitable for HMC/NUTS whitening.