Combine Checkpoint Draws

Combine Checkpoint Draws

combine_chkpt_draws(object, ...)

Arguments

object

An object of class brmsfit or chkpt_stan.

...

Currently ignored.

Value

An object of class draws_array.

Examples

 
if (FALSE) {  
path <- create_folder(folder_name = "chkpt_folder_fit1")

stan_code <- "
data {
 int<lower=0> n;
  real y[n];
  real<lower=0> sigma[n];
}
parameters {
  real mu;
  real<lower=0> tau;
  vector[n] eta;
}
transformed parameters {
  vector[n] theta;
  theta = mu + tau * eta;
}
model {
  target += normal_lpdf(eta | 0, 1);
  target += normal_lpdf(y | theta, sigma);
}
"

stan_data <- schools.data <- list(
  n = 8,
  y = c(28,  8, -3,  7, -1,  1, 18, 12),
  sigma = c(15, 10, 16, 11,  9, 11, 10, 18)
)

fit2 <- chkpt_stan(model_code = stan_code,
                   data = stan_data,
                   iter_warmup = 1000,
                   iter_sampling = 1000,
                   iter_per_chkpt = 250,
                   path = path)

draws <- combine_chkpt_draws(object = fit2)

draws
}