@rybern Using the latest CmdStanR from github I was trying out pedantic mode (which is really cool!) and I got an unexpected warning:
stan_file <- write_stan_file(
"parameters {
real x;
real sigma;
}
model {
x ~ normal(0, sigma);
sigma ~ exponential(1);
}"
)
mod <- cmdstan_model(stan_file, stanc_options = list("warn-pedantic"=TRUE))Compiling Stan program...
Warning:
The parameter sigma has 2 priors.
Warning at '/var/folders/h6/14xy_35x4wd2tz542dn0qhtc0000gn/T/RtmpwDnKa2/model-e66b730e6be7.stan', line 6, column 16 to column 21:
A normal distribution is given parameter sigma as a scale parameter
(argument 2), but sigma was not constrained to be strictly positive.
Warning at '/var/folders/h6/14xy_35x4wd2tz542dn0qhtc0000gn/T/RtmpwDnKa2/model-e66b730e6be7.stan', line 7, column 2 to column 7:
Parameter sigma is given a exponential distribution, which has strictly
positive support, but sigma was not constrained to be strictly positive.
The second two warnings make sense but the first one about sigma having 2 priors isn't correct. There's only one prior on sigma. Is this a bug?
@rybern Using the latest CmdStanR from github I was trying out pedantic mode (which is really cool!) and I got an unexpected warning:
The second two warnings make sense but the first one about sigma having 2 priors isn't correct. There's only one prior on sigma. Is this a bug?