Multiple refactorings reformatted#193

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alyst wants to merge 61 commits intoStructuralEquationModels:develfrom

alyst:optim_ext_ram_reformatted

Commits on Feb 16, 2026

FIML: SemFIMLPattern
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EM: optimizations

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EM MVN: decouple from SemObsMissing
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ObsMissing: docstring update

Alexey Stukalov
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EM MVN: further optimizations

Alexey Stukalov
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trunc_eigvals(): new helper func

Alexey Stukalov
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em_mvn(): min_eigval to enforce pos-def

Alexey Stukalov
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add ProgressMeter dep

Alexey Stukalov
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em_mvn(): verbose arg and progress bar

Alexey Stukalov
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test/fiml: set EM MVN rtol=1e-10
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SemObsMissing: fix obs_mean() test
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cleanup docstring

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em_mvn(): cleanup docstring

Alexey Stukalov
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em_step!(): enforce symmetry

Alexey Stukalov
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trunc_eval(): check that mtx is sym, fix reconstruct

Alexey Stukalov
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FIML: fixup ws and msg indent
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tests/model: fix ws

Alexey Stukalov
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check_meanstruct_spec(): fix ws

Alexey Stukalov
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SemML&WLS: warn if SemObsMissing
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SemObservedData: fix ws and msg indent

Alexey Stukalov
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fix RMSEA

Alexey Stukalov
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declare cov matrices symmetric
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start_simple(SemEnsemble): simplify

Alexey Stukalov
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RAM: reuse sigma array

Alexey Stukalov
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RAM: optional sparse Sigma matrix

Alexey Stukalov
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ML: refactor to minimize allocs
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add PackageExtensionCompat

Alexey Stukalov
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variance_params(SEMSpec)

Alexey Stukalov
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predict_latent_vars()
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fixup docstring

Alexey Stukalov
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lavaan_model()

Alexey Stukalov
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test_grad/hess(): check that alt calls give same results

Alexey Stukalov
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start_simple(): code cleanup
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start_simple(): start vals for lat and obs means

Alexey Stukalov
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observed_vars(RAMMatrices; order): rows/cols order
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observed_var_indices(::RAMMatrices; order=:columns)

Alexey Stukalov
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move sparse mtx utils to new file
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reorder_observed_vars!(spec) method
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vech() and vechinds() functions
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SemImplied/SemLossFun: drop meanstructure kwarg
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RAMMatrices(): ctor to replace params

Alexey Stukalov
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use `@printf` to limit signif digits printed
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ML/FIML: workaround generic_matmul issue
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Commits on Feb 19, 2026

refactor Sem, SemEnsemble, SemLoss
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remove multigroup2 tests
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BlackBoxOptim.jl backend support
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fit_measures(): formatting tweaks

Alexey Stukalov
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improve docstrings for fit measures

Alexey Stukalov
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non_posdef_objective()

Alexey Stukalov
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prepare_start_params(): tighten type check

Alexey Stukalov
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WIP SemImpliedState

Alexey Stukalov
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MeanStruct(ram)
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SemObserved: fix mean_and_cov() call

Alexey Stukalov
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filter_used_params()

Alexey Stukalov
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param_indices(spec) method

Alexey Stukalov
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SemNorm: generalize SemRidge
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tests: regularization/SemNorm
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add SemHinge

Alexey Stukalov
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add SemSquaredHinge

Alexey Stukalov
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generalized hinge
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tests: regularization/SemHinge
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