lk_obs_score function

Compute observed log-likelihood and score

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

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

Returns

• lk: log-likelihood function

• sc: score vector

Author(s)

Francesco Bartolucci - University of Perugia (IT)