Displaying 5 results from an estimated 5 matches for "averageincomemodels".
2016 Oct 08
4
optim(…, method=‘L-BFGS-B’) stops with an error message while violating the lower bound
...lating the lower bound.
To see all the details, try the following:
install.packages("Ecdat", repos="http://R-Forge.R-project.org")
Then do "help(pac=Ecdat)" -> "User guides, package vignettes and
other documentation" -> "Ecdat::AverageIncomeModels".
I've found other optimizers that will get around the problem in
this case but none that performs as well as optim with many other problems.
Thanks,
Spencer Graves
p.s. I've also tested bobyqa{minqa} or nloptr{nloptr}, recommended in a
vignette in the lme...
2016 Oct 08
4
optim(…, method=‘L-BFGS-B’) stops with an error message while violating the lower bound
...gt; install.packages("Ecdat", repos="http://R-Forge.R-project.org
> <http://R-Forge.R-project.org>")
>
>
> Then do "help(pac=Ecdat)" -> "User guides, package vignettes
> and other documentation" -> "Ecdat::AverageIncomeModels".
>
>
> I've found other optimizers that will get around the problem
> in this case but none that performs as well as optim with many
> other problems.
>
>
> Thanks,
> Spencer Graves
>
>
> p.s. I've also tes...
2016 Oct 08
0
optim(…, method=‘L-BFGS-B’) stops with an error message while violating the lower bound
...olating the lower bound.
To see all the details, try the following:
install.packages("Ecdat", repos="http://R-Forge.R-project.org")
Then do "help(pac=Ecdat)" -> "User guides, package vignettes and
other documentation" -> "Ecdat::AverageIncomeModels".
I've found other optimizers that will get around the problem in
this case but none that performs as well as optim with many other problems.
Thanks,
Spencer Graves
p.s. I've also tested bobyqa{minqa} or nloptr{nloptr}, recommended in a
vignette in the lme4...
2016 Oct 08
0
optim(…, method=‘L-BFGS-B’) stops with an error message while violating the lower bound
...To see all the details, try the following:
>
>
> install.packages("Ecdat", repos="http://R-Forge.R-project.org")
>
>
> Then do "help(pac=Ecdat)" -> "User guides, package vignettes and
> other documentation" -> "Ecdat::AverageIncomeModels".
>
>
> I've found other optimizers that will get around the problem in this
> case but none that performs as well as optim with many other problems.
>
>
> Thanks,
> Spencer Graves
>
>
> p.s. I've also tested bobyqa{minqa} or nloptr{n...
2016 Oct 09
1
optim(?, method=?L-BFGS-B?) stops with an error
I'll not copy all the previous material on this thread to avoid overload.
The summary is that all the methods Spencer has tried have some issues.
The bad news: This is not uncommon with optimization methods, in part because the problems are "hard",
in part because getting them implemented and linked to an interfacing approach like R is very tedious
and prone to omissions and