measrdcm: S7 class for measrdcm objects

In measr: Bayesian Psychometric Measurement Using 'Stan'

S7 class for measrdcm objects

Description

The measrdcm constructor is exported to facilitate the conversion of other model objects (e.g., stanfit) to measrdcm objects. We do not expect or recommend calling this function directly, unless you are creating a method for converting to measrdcm. Rather, to create a measrdcm object, one should use dcm_estimate().

Usage

measrdcm(
  model_spec = NULL,
  data = list(),
  stancode = character(0),
  method = stanmethod(),
  algorithm = character(0),
  backend = stanbackend(),
  model = list(),
  respondent_estimates = list(),
  fit = list(),
  criteria = list(),
  reliability = list(),
  file = character(0),
  version = list()
)

Arguments

model_spec	The model specification used to estimate the model.
data	The data used to estimate the model.
stancode	The model code in Stan language.
method	The method used to fit the model.
algorithm	The name of the algorithm used to fit the model.
backend	The name of the backend used to fit the model.
model	The fitted Stan model. This will object of class rstan::stanfit if backend = "rstan" and CmdStanMCMC if backend = "cmdstanr" was specified when fitting the model.
respondent_estimates	An empty list for adding estimated person parameters after fitting the model.
fit	An empty list for adding model fit information after fitting the model.
criteria	An empty list for adding information criteria after fitting the model.
reliability	An empty list for adding reliability information after fitting the model.
file	Optional name of a file which the model objects was saved to or loaded from.
version	The versions of measr, Stan, and rstan or cmdstanr that were used to fit the model.

Value

A measrdcm object.

See Also

dcm_estimate().

Examples

qmatrix <- tibble::tibble(
  att1 = sample(0:1, size = 15, replace = TRUE),
  att2 = sample(0:1, size = 15, replace = TRUE),
  att3 = sample(0:1, size = 15, replace = TRUE),
  att4 = sample(0:1, size = 15, replace = TRUE)
)

spec <- dcm_specify(qmatrix = qmatrix)

measrdcm(spec)

measr documentation built on Jan. 14, 2026, 5:08 p.m.