Crate nereids_fitting 

nereids-fitting

Optimization engine for fitting resonance models to measured transmission data.

Modules

• parameters — Fit parameter types, bounds, constraints
• lm — Levenberg-Marquardt least-squares optimizer
• poisson — Poisson-likelihood optimizer for low-count data
• joint_poisson — Joint-Poisson profile binomial deviance (counts path)
• nelder_mead — Bounded Nelder-Mead polish optimizer
• transmission_model — Transmission forward model adapter for fitting

SAMMY Reference

• Fitting: fit/ module, fitAPI/, manual Sec. IV

TRINIDI Reference

• trinidi/reconstruct.py for Poisson-likelihood and APGM approach

Modules

active_mask

Active-bin masking for fit-energy-range restriction.

error

Error types for the nereids-fitting crate.

forward_model

Solver-agnostic forward model trait.

joint_poisson

Joint-Poisson counts-path objective with profiled flux.

lm

Levenberg-Marquardt least-squares optimizer.

nelder_mead

Bounded Nelder-Mead simplex minimizer.

parameters

Fit parameter types, bounds, and constraints.

poisson

Poisson-likelihood optimizer for low-count neutron data (transmission path).

transmission_model

Transmission forward model adapter for fitting.