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 likelihood function are not evaluated as accurately in newer versions of R in my experience, which is why I continue to use R-3.0.3. Because I use this older version of R, naturally I need to install other supporting packages such as aod and AER. Certainly, I will install the zip file of the older version of maxLik to the latest R and see what happens. Thank you.
I will install the new maxLik in old R, and old maxLik in new R, and see what happens. Sent from my iPhone Beware: My autocorrect is crazy > On Oct 9, 2020, at 2:17 AM, Richard M. Heiberger <r...@temple.edu> wrote: > > 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 then use the current R. > > A less good, but possibly workable, option is to compile the old > version of aod into the current R. > >> On Thu, Oct 8, 2020 at 1:45 PM Jeff Newmiller <jdnew...@dcn.davis.ca.us> >> wrote: >> >> All support on this list is voluntary, and support for old versions of R is >> not even necessarily on-topic here which is why you keep getting nudged to >> upgrade. Your "need" for support for an old version is definitely not "our" >> problem, so I suggest you start looking for a consultant if this issue is >> that important to you. Such is the nature of volunteer-developed open source >> software... so support your local experts. >> >>> On October 8, 2020 10:22:54 AM PDT, Steven Yen <st...@ntu.edu.tw> wrote: >>> Thanks for the help. I have a reason to continue with R-3.0.3. I used >>> maxLik to estimate econometric models and some of them are better >>> handled with R-3.0.3 (but not later)----a sad reality I do not like. >>> >>> Here is what I did. I downloaded >>> >>> https://cran-archive.r-project.org/bin/windows/contrib/3.0/aod_1.3.zip >>> >>> and installed the zip file, which worked in both RStudio and R (without >>> >>> RStudio). >>> >>> In RStudio, I go Tools -> Install packages -> Install from -> (Choose >>> zip) -> (Browse to the zip file) >>> >>> IN R, I go Packages -> Install packages from local file(s) -> (Browse >>> to >>> the zip file)... ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
