Split-sex species files now contain a male spawning weight-at-age vector, wt_M, immediately after wt_F. The R validator and ADMB engine both read and validate the new field. Pooled-sex files continue to use wt_F for both internal sex groups.
Version-2 projections no longer read or require tacpar.dat. They continue to require TAC_ABC = 1; legacy fitted and external TAC modes remain rejected.
spmR 0.4.0
New projections require input metadata format 2 and a compatible executable. Legacy output remains readable with run = FALSE.
Recruitment basis is explicit. The complete history is converted to total recruitment before calculating arithmetic and harmonic means, variability, simulations, and stock–recruitment inputs. Each projected total is allocated equally to the two sexes once.
Female and male population weights are separate from spawning and fishery weights. Missing male population weights require an explicit, recorded substitute for split-sex inputs. Metadata validation checks age order, dimensions, finite values, and compatible units.
Total biomass uses population weights throughout projections and biomass reference calculations. Male reference calculations use male selectivity.
Stock–recruitment fits use bounds tied to the normalized recruitment history and mean-corrected lognormal draws. Unit-scaled fixtures check the fitted relationships. New fitted runs require a maximum gradient below 1e-4 and a positive-definite Hessian.
New runs validate inputs before execution, check the executable’s format support, use a clean execution directory, and write SHA-256 provenance. Existing results survive a failed run.
Format 2 supports direct ABC projections (TAC_ABC = 1), recruitment modes 1 and 2, abundance scaling N_scalar = 1, and weight in kg. Auxiliary recruitment modes 3 and 4 and the experimental RTMB projection runner require further implementation before use with this format.
spmR 0.3.0
as_spm_result() provides a validated common result format for projection model backends while preserving model-specific columns.
runSPM() now dispatches through internal model adapters and returns an spm_result while remaining compatible with legacy ADMB and experimental RTMB calls.
tier3_scenario_table() summarizes simulation output into assessment-ready rows for the seven Tier 3 projection alternatives.
spmR 0.2.1
The experimental RTMB path can reuse existing output when rendering its comparison vignette. This path remains a simplified prototype and is not yet a full RTMB translation or numerically equivalent replacement for the ADMB model.