lk_obs_score {MultiLCIRT}

Compute observed log-likelihood and score

Description

Function used within est_multi_poly to compute observed log-likelihood and score.

Usage

lk_obs_score(par_comp, lde, lpar, lga, S, R, yv, k, rm, l, J, fv, link,
	         disc, indga, glob, refitem, miss, ltype, XXdis, Xlabel,
	         ZZ0, fort)

Arguments

par_comp

complete vector of parameters

lde

length of de

lpar

length of par

lga

length of ga

S

matrix of responses

R

matrix of observed responses indicator

yv

vector of frequencies

k

number of latent classes

rm

number of dimensions

l

number of respnse categories

J

number of items

fv

indicator of constrained parameters

link

link function

disc

presence of discrimination parameter

indga

indicator of gamma parameters

glob

indicator of gloabl parametrization for the covariates

refitem

vector of reference items

miss

indicator of presence of missing responses

ltype

type of logit

XXdis

array of covariates

Xlabel

indicator for covariate configuration

ZZ0

design matrix

fort

to use fortran

Value

lk

log-likelihood function

sc

score vector

Author(s)

Francesco Bartolucci - University of Perugia (IT)