metafrontier v0.3.0 - #2
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New features:
- estimator = c('bc88', 'jlms'): Battese-Coelli (1988) conditional
expectation as the new default efficiency estimator; both stored,
switchable via efficiencies() without refitting.
- objective = c('lp', 'qp'): both identification criteria for the
deterministic metafrontier (QP solved exactly via quadprog with a
constrOptim barrier fallback); the bootstrap forwards the choice.
- engine = c('internal', 'sfaR', 'frontier', 'Benchmarking'):
backend delegation for group frontiers; Benchmarking XREF/YREF
drives the pooled DEA metafrontier.
- malmquist_meta(id = ): explicit firm matching with strict checks;
cross-period infeasibilities counted, warned, and reported; the
SFA path documents and announces its pointwise-maximum
approximation.
- check_convergence() diagnostics; convergence blocks in print()
and summary(); warning gaps closed in panel, QP, EM, and
Malmquist paths.
- DEA: rts = 'fdh', hyperbolic (graph) efficiency, user-supplied
DDF direction vectors/matrices, two-stage slack analysis;
permutation poolability test for DEA fits.
- coef()/vcov()/summary() expose eta and variance parameters
(extraPar, which = 'group').
- simulate_metafrontier(): beta_groups, input_means, input_corr;
simulate_panel_metafrontier(): attrition; unbalanced BC92 panels
fully supported.
Bug fixes:
- Panel TE row-order alignment; BC92 decay anchored at the global
final period; cross-period DEA phi lower bound; frontier-class
dispatch and converter idempotency; poolability data.name;
autoplot CI lines and MPI trend axis; EM cleanup.
Docs: vignettes rewritten and rebuilt, man pages expanded,
likelihood derivation comments added. 650 tests passing; R CMD
check clean.
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New features
estimator = c("bc88", "jlms"): Battese-Coelli (1988) conditional-expectation efficiency estimator implemented for all distributions (including heteroscedastic and BC92/BC95 panel closed forms) and made the default; both estimators stored, switchable viaefficiencies()without refitting.objective = c("lp", "qp"): both identification criteria for the deterministic metafrontier; QP solved exactly via quadprog with a constrOptim barrier fallback; the bootstrap forwards the choice.engine = c("internal", "sfaR", "frontier", "Benchmarking")backend delegation;engine = "Benchmarking"computes both DEA stages viaBenchmarking::dea()XREF/YREF.malmquist_meta(id = )explicit firm matching (duplicate errors, dropped-observation warnings, positional fallback message); cross-period infeasibility counted, warned, stored, and printed; the SFA path documents and announces its pointwise-maximum approximation.check_convergence()plus convergence blocks inprint()/summary(); warning gaps closed across panel, QP, EM, and Malmquist paths.rts = "fdh",type = "hyperbolic", user-supplied DDF direction vectors/matrices,slack = TRUEtwo-stage slacks; permutation poolability test dispatched bypoolability_test()for DEA fits.coef()/vcov()/summary()expose eta and variance parameters (extraPar,which = "group").simulate_metafrontier():beta_groups,input_means,input_corr;simulate_panel_metafrontier():attrition; unbalanced BC92 panels fully supported.Bug fixes
phi >= 1bound that silently produced NA for super-efficient DMUs even under CRS.as_metafrontier_model(): frontier-class dispatch fixed, conversion made idempotent.autoplot()bootstrap CI lines now drawn; MPI trend plotted at end periods.poolability_test()data.name; latent class EM cleanup.Docs
Tests: 650 passing, 0 failures. R CMD check: 0 errors, 0 warnings.