BicopLike.flip

abstract BicopLike.flip()

Return the pair copula with its two arguments swapped.

The flipped copula satisfies c'(u1, u2) = c(u2, u1), with the two h-functions (and their inverses) exchanged accordingly. Structure selection (select()) uses it to reorient a fitted pair onto its slot in the finalized vine, mirroring Vinecop.

Returns:

BicopLike

The argument-swapped pair copula; the object itself is left unchanged.