R/xxirt_vcov.R

Defines functions vcov.xxirt

Documented in vcov.xxirt

## File Name: xxirt_vcov.R
## File Version: 0.09

vcov.xxirt <- function( object, ...)
{
    res <- xxirt_hessian( object )
    return( solve(-res) )
}
alexanderrobitzsch/sirt documentation built on March 18, 2024, 1:29 p.m.