Module estimation_error 

Structs

FixedLambdaCheckpoint

Owned, serde-safe coefficient checkpoint for a fixed-lambda Newton solve.

FixedLambdaStationarityEvidence

Evidence from the exact stationarity check at the last accepted iterate.

StationarityRung

Which rung of the stationarity ladder produced the bound a refusal was measured against (#2458).

Enums

EstimationError

A comprehensive error type for the model estimation process.

FixedLambdaResidualKind

Solver-native first-order residual carried by a fixed-lambda stall.

FixedLambdaSolverStage

Fixed-lambda solver stage that owns a resumable coefficient checkpoint.

FixedLambdaStallReason

Exhaustive terminal reason for a fixed-lambda solve without a certificate.