launch_shinystan-idealstan-method: Function to Launch Shinystan with an 'idealstan' Object

In idealstan: Robust Measurement with 'Stan'

Function to Launch Shinystan with an idealstan Object

Description

This wrapper will pull the rstan samples out of a fitted idealstan model and then launch launch_shinystan. This function is useful for examining convergence statistics of the underlying MCMC sampling.

Usage

## S4 method for signature 'idealstan'
launch_shinystan(
  object,
  pars = c("L_full", "sigma_reg_full", "sigma_abs_free", "A_int_free", "B_int_free",
    "steps_votes", "steps_votes_grm"),
  ...
)

Arguments

object	A fitted idealstan object
pars	A character vector of parameters to select from the underlying rstan model object
...	Other parameters passed on to shinystan

Value

No return value; called for side effects (launches the Shinystan interactive diagnostics application).

See Also

shinystan

Examples

data('senate114')
senate114$cast_code <- ifelse(senate114$cast_code=="Absent", NA,
                              as.integer(senate114$cast_code) - 1L)
sen_data <- id_make(senate114, outcome_disc='cast_code',
                    person_id='bioname', item_id='rollnumber',
                    group_id='party_code')
sen_est <- id_estimate(sen_data, model_type=1, use_method="pathfinder", fixtype='vb_full', ncores=4)

# will launch interactive browser
if(interactive()) {
  launch_shinystan(sen_est)
}

idealstan documentation built on May 13, 2026, 1:08 a.m.