I’m trying to run the code from here. This was working for me before, yet I was suggested to upgrade to R.4.0 and so I did. My current version of R is 4 and my Rstudio is Version 1.2.5. However, now that I am running this part of the code:
> test = stan("SI_fit.stan",
+ data = stan_d,
+ pars = params_monitor,
+ chains = 1, iter = 10)
I get:
Error in prep_call_sampler(object) :
could not find function "prep_call_sampler"
I looked this up and it seems prep_call_sampler is a function of rstan so it must be installed with rstan. To install rstan I tried:
install.packages("rstan")
and
install.packages("rstan", dependencies = TRUE)
and on both methods, I get the error! I wonder what is going wrong here? Note that I am using MacOs Catalina.
Another note, when I run file.edit("~/.Renviron")
on R I get this:
# clang: start
PATH="/usr/local/clang7/bin:${PATH}"
# clang: end
which I am not sure what I should do with it. This seems to be important in here.