In Psi, only use of .Integrate
Fixed Phi: more robust numerical expression of Phi in constant case
Workaround cst/expo=FALSE treatment in integrate: function should be
evaluated on a sample and always returns a sample
WIP, some major numerical differences are observed with this new
implementation
Cancelled effects of previous commit due to several numerical troubles
Updated Psi function. In the general case, the r and r.int.0 functions should be evaluated on samples.
Using mapply, this becomes possible.
Vectorize takes more time because of several checks, internal objects build
This should be applied to Phi
Applied mapply to the evaluation of integrals in Phi