On Fri, 9 Oct 2020 at 12:28, Martin Maechler wrote:
>
> > Steven Yen
> > on Fri, 9 Oct 2020 05:39:48 +0800 writes:
>
> > Oh Hi Arne, You may recall we visited with this before. I
> > do not believe the problem is algorithm specific. The
> > algorithms I use the most often a
> Steven Yen
> on Fri, 9 Oct 2020 05:39:48 +0800 writes:
> Oh Hi Arne, You may recall we visited with this before. I
> do not believe the problem is algorithm specific. The
> algorithms I use the most often are BFGS and BHHH (or
> maxBFGS and maxBHHH). For simple econo
Oh Hi Arne,
You may recall we visited with this before. I do not believe the problem is
algorithm specific. The algorithms I use the most often are BFGS and BHHH (or
maxBFGS and maxBHHH). For simple econometric models such as probit, Tobit, and
evening sample selection models, old and new versio
Hi Steven
Which optimisation algorithms in maxLik work better under R-3.0.3 than
under the current version of R?
/Arne
On Thu, 8 Oct 2020 at 21:05, Steven Yen wrote:
>
> Hmm. You raised an interesting point. Actually I am not having problems with
> aod per se—-it is just a supporting package I
Hmm. You raised an interesting point. Actually I am not having problems with
aod per se—-it is just a supporting package I need while using old R. The
essential package I need, maxLik, simply works better under R-3.0.3, for reason
I do not understand—specifically the numerical gradients of the l
I wonder if you are perhaps trying to solve the wrong problem.
If you like what the older version of the aod package does, but not
the current version,
then I think the solution is to propose an option to the aod
maintainer that would restore your
preferred algorithm into the current version, and
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