bicop and BiCopSelect return different models

[waynelapierre]

Thanks for this great package. I am trying to identify a proper copula model for two random variables. The bicop function returns a Joe-Frank copula while the VineCopula::BiCopSelect returns a t-copula. Is it normal?

[tnagler]

Yes that can happen, because the copula implementations and optimizer are not identical. It would be easier to say if what you observe is normal, if you would provide a reproducible example.