write_mirt_input: Prepare a mirt model

In ItemResponseTrees: IR-Tree Modeling in 'mirt', 'Mplus', or 'TAM'

Description

This is an internal function used by irtree_fit_mirt(). It receives its inputs from the model object and the data set and returns a mirt::mirt.model object.

Usage

write_mirt_input(object = NULL, data = NULL)

Arguments

object	Object of class irtree_model. See irtree_model for more information.
data	Data frame containing containing one row per respondent and one column per variable. The variable names must correspond to those used in object.

Value

A list with three elements. mirt_string is the mirt::mirt.model object; itemtype can be passed to mirt::mirt(); lambda is the modified lambda matrix from the object-argument.

ItemResponseTrees documentation built on July 2, 2020, 2:25 a.m.