R/CDM_require_namespace.R

In CDM: Cognitive Diagnosis Modeling

## File Name: CDM_require_namespace.R
## File Version: 0.08

CDM_require_namespace <- function(pkg)
{
    if ( ! requireNamespace( pkg, quietly=TRUE) ){
        stop( paste0("Package '", pkg, "' is needed for applying this
            function. Please install it." ), call.=FALSE)
    }
}