What types of models do not need an imply?

[aaronpeikert]

@Maximilian-Stefan-Ernst Could you elaborate?

StructuralEquationModels.jl/src/imply/empty.jl

Line 5 in 0c18784

Empty placeholder for models that don't need an imply part.

[Maximilian-Stefan-Ernst]

For example, a multigroup model with ridge regularization can be implemented as one model per group plus one additional model for the regularization. The regularization model does not need an imply part, as ridge does not depend on the model implied covariance matrix. Do you think that should be part of the documentation there?

[aaronpeikert]

Yes.

[Maximilian-Stefan-Ernst]

Ok, I will add it