R/gdina_proc_regularization.R

In CDM: Cognitive Diagnosis Modeling

## File Name: gdina_proc_regularization.R
## File Version: 0.24

gdina_proc_regularization <- function( regular_type, cd, mono.constr, linkfct,
    method, PEM, regular_lam, regular_alpha, regular_tau, rule, optimizer="CDM" )
{
    save.devmin <- TRUE
    regularization <- FALSE
    cd_algorithm <- FALSE
    regularization_types <- c("lasso","scad", "elnet","ridge", "scadL2", "tlp", "mcp")
    if ( sum(rule=="SISM") > 0 ){
        method <- "ML"
    }
    if (regular_type %in% regularization_types ){
        regularization <- TRUE
        cd_algorithm <- TRUE
        method <- "ML"
    }
    if ( cd ){
        cd_algorithm <- TRUE
    }
    if ( mono.constr ){
        linkfct <- "logit"
        method <- "ML"
        PEM <- FALSE
    }
    if (regularization){
        save.devmin <- FALSE
        linkfct <- "logit"
        PEM <- FALSE
        optimizer <- "CDM"
    }
    if ( linkfct=="log"){
        PEM <- FALSE
    }
    if ( ! ( regular_type %in% c("elnet", "scadL2") ) ){
        regular_alpha <- NA
    }
    if ( ! ( regular_type %in% c("tlp") ) ){
        regular_tau <- NA
    }

    #---- output
    res <- list( linkfct=linkfct, save.devmin=save.devmin, method=method,
                regularization=regularization, cd_algorithm=cd_algorithm,
                PEM=PEM, regular_lam=regular_lam, regular_alpha=regular_alpha,
                regular_tau=regular_tau, regularization_types=regularization_types,
                optimizer=optimizer )
    return(res)
}