R/tam_linking_parameters_select_common_items.R

In TAM: Test Analysis Modules

## File Name: tam_linking_parameters_select_common_items.R
## File Version: 0.05

tam_linking_parameters_select_common_items <- function(out, items_sel, names_suffix=NULL)
{
    #-- A
    A <- out$A
    A <- A[ items_sel,,,drop=FALSE ]
    #-- B
    B <- out$B
    B <- B[ items_sel,,, drop=FALSE]
    #-- AXsi
    AXsi <- out$AXsi
    AXsi <- AXsi[ items_sel,, drop=FALSE]
    #-- guess
    guess <- out$guess
    if ( ! is.null(guess) ){
        guess <- guess[ items_sel ]
    }
    #-- distribution
    M <- out$M
    SD <- out$SD
    #--- OUTPUT
    res <- list(B=B, AXsi=AXsi, guess=guess, M=M, SD=SD)
    if ( ! is.null(names_suffix) ){
        names(res) <- paste0( names(res), names_suffix )
    }
    return(res)
}