read_csv_as_stanfit | R Documentation |
read_csv_as_stanfit
is used internally to read CmdStan CSV files into a
stanfit
object that is consistent with the structure of the fit slot of a
brmsfit object.
read_csv_as_stanfit(
files,
variables = NULL,
sampler_diagnostics = NULL,
model = NULL,
exclude = "",
algorithm = "sampling"
)
files |
Character vector of CSV files names where draws are stored. |
variables |
Character vector of variables to extract from the CSV files. |
sampler_diagnostics |
Character vector of sampler diagnostics to extract. |
model |
A compiled cmdstanr model object (optional). Provide this argument if you want to allow updating the model without recompilation. |
exclude |
Character vector of variables to exclude from the stanfit. Only
used when |
algorithm |
The algorithm with which the model was fitted.
See |
A stanfit object consistent with the structure of the fit
slot of a brmsfit object.
## Not run:
# fit a model manually via cmdstanr
scode <- stancode(count ~ Trt, data = epilepsy)
sdata <- standata(count ~ Trt, data = epilepsy)
mod <- cmdstanr::cmdstan_model(cmdstanr::write_stan_file(scode))
stanfit <- mod$sample(data = sdata)
# feed the Stan model back into brms
fit <- brm(count ~ Trt, data = epilepsy, empty = TRUE, backend = 'cmdstanr')
fit$fit <- read_csv_as_stanfit(stanfit$output_files(), model = mod)
fit <- rename_pars(fit)
summary(fit)
## End(Not run)
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