[R-SIG-Mac] Error when fitting a brms model, maybe associated with Catalina MacOS

[Ken Beath]

No, it only downloads and installs the right compilers and updates Makevars and REnvirons. These are what Stan and RCpp require so you could do these manually.

What it does is described at https://github.com/rmacoslib/r-macos-rtools

Ken

> On 12 Dec 2019, at 1:14 am, Manuel Spínola <mspinola10 using gmail.com> wrote:
> 
> Thank you very much to all.
> 
> Does Installing the macos-rtools could affect R in other ways?
> 
> Manuel
> 
> El mié., 11 dic. 2019 a las 6:56, Ken Beath (<ken using kjbeath.com.au>) escribió:
> What worked for me was installing the tools using https://github.com/rmacoslib/r-macos-rtools/releases
> 
> and then installing rstan from source ie install.packages(“rstan”,type=“source) as suggested on one of the stan forums
> 
> Ken
> 
> > On 11 Dec 2019, at 11:09 am, Manuel Spínola <mspinola10 using gmail.com> wrote:
> > 
> > Dear list members,
> > 
> > When trying to fit this example from the CRAN repository fro brms, I got
> > the following error message after the 4th chain.  I am using R 3.6.1 in
> > Catalina MacOS.
> > 
> > 
> > library(brms)
> > 
> > group <- rep(c("treat", "placebo"), each = 30)
> > symptom_post <- c(rnorm(30, mean = 1, sd = 2), rnorm(30, mean = 0, sd = 1))
> > dat1 <- data.frame(group, symptom_post)
> > 
> > fit1 <- brm(bf(symptom_post ~ group, sigma ~ group),
> >            data = dat1, family = gaussian())
> > 
> > 
> > [1] "Error in sampler$call_sampler(args_list[[i]]) : "
> > [2] "  c++ exception (unknown reason)"
> > error occurred during calling the sampler; sampling not done
> > 
> > I think is a problem with Catalina MacOS, but I don´t know how to solve it.
> > 
> > Manuel
> > 
> > -- 
> > *Manuel Spínola, Ph.D.*
> > Instituto Internacional en Conservación y Manejo de Vida Silvestre
> > Universidad Nacional
> > Apartado 1350-3000
> > Heredia
> > COSTA RICA
> > mspinola using una.cr <mspinola using una.ac.cr>
> > mspinola10 using gmail.com
> > Teléfono: (506) 8706 - 4662
> > Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
> > Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>
> > 
> >       [[alternative HTML version deleted]]
> > 
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> 
> 
> 
> -- 
> Manuel Spínola, Ph.D. 
> Instituto Internacional en Conservación y Manejo de Vida Silvestre 
> Universidad Nacional 
> Apartado 1350-3000 
> Heredia 
> COSTA RICA 
> mspinola using una.cr 
> mspinola10 using gmail.com 
> Teléfono: (506) 8706 - 4662
> Personal website: Lobito de río 
> Institutional website: ICOMVIS