BLIS S4 class
Extends mirt
's SingleGroupClass
directly (meaning all mirt
methods that work with that class will work with BlisClass too; make sure mirt
is loaded).
class
The purpose of the class is to have a custom coef
method (see coef,BlisClass-method ) dispatched and the original levels with correct response (as a key
attribute) stored in the resulting fitted model.
orig_levels
: list of original levels with logical attribute key
, which stores the information on which response (level) has been considered as correct. Note that levels not used in the original data are dropped.Other BLIS/BLIRT related: coef,BlisClass-method
, fit_blis()
, get_orig_levels()
, nominal_to_int()
, obtain_nrm_def()
, print.blis_coefs()
Useful links