I don’t see how neither a) or b) applies to this question nor the technical merit of the remark about mixture models.
Do you have a suggestion for a more appropriate forum for this issue/question? (stackoverflow basically sent me here). Kind regards > On 29. Jun 2017, at 16:58, Bert Gunter <bgunter.4...@gmail.com> wrote: > > Offlist, because this is (a) an opinion and (b) about statistics and > therefore offtopic. > > I don't know whether any such package exists, but I would predict that > this is likely to be overdetermined (too many parameters) and > therefore unlikely to be a successful strategy. Fitting a mixture of > Gaussians is already difficult enough. > > Feel free to ignore, of course, and no need to reply. > > Cheers, > Bert > > > Bert Gunter > > "The trouble with having an open mind is that people keep coming along > and sticking things into it." > -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > > > On Thu, Jun 29, 2017 at 5:41 AM, vare vare via R-help > <r-help@r-project.org> wrote: >> Hello! >> >> I am new to R (before used python exclusively and would actually call the R >> solution for this issue inside a python notebook, hope that doesn’t >> disqualify me right of the batch). >> >> Right now I am looking for a piece of software to fit a 1D data sample to >> a mixture of t-distributions. >> >> I searched quite a while already and it seems to be that this is a somehwat >> obscure endeavor as most search results turn up for mixture of gaussians >> (what I am not interested here). >> >> The most promising candidates so far are the "AdMit" and "MitSEM" R >> packages. However I do not know R and find the description of these packages >> rather comlple and it seems their core objective is not the fitting of >> mixtures of t’s but instead use this as a step to accomplish something else. >> >> This is in a nutshell what I want the software to accomplish: >> >> Fitting a mixture of t-distributions to some data and estimate the >> "location" "scale" and "degrees of freedom" for each. >> >> I hope someone can point me to a simple package, I can’t believe that this >> is such an obscure use case. >> >> Thanks! >> >> ______________________________________________ >> 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. ______________________________________________ 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.
