Summary method for stanfit objects
Summarize the distributions of estimated parameters and derived quantities using the posterior draws.
## S4 method for signature 'stanfit' summary(object, pars, probs = c(0.025, 0.25, 0.50, 0.75, 0.975), use_cache = TRUE, ...)
object |
An instance of class |
pars |
A character vector of parameter names. Defaults to all parameters
as well as the log-posterior ( |
probs |
A numeric vector of |
use_cache |
Logical, defaulting to |
... |
Currently unused. |
The summary method returns a named list with elements summary
and c_summary, which contain summaries for for all chains merged and
individual chains, respectively.
Included in the summaries are quantiles, means, standard deviations (sd),
effective sample sizes (n_eff), and split Rhats (the potential scale
reduction derived from all chains after splitting each chain in half and
treating the halves as chains). For the summary of all chains merged,
Monte Carlo standard errors (se_mean) are also reported.
monitor, which computes similar summaries but accepts an
array of MCMC draws as its input rather than a stanfit object.
The RStan vignettes for more example usage.
## Not run:
ecode <- '
parameters {
real<lower=0> y[2];
}
model {
y ~ exponential(1);
}
'
fit <- stan(model_code = ecode)
s <- summary(fit, probs = c(0.1, 0.9))
s$summary # all chaines merged
s$c_summary # individual chains
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.