fcors.value             This function specifies correlation matrix
                        between the factors.
fit.simulation          This function runs a model for simulated data
                        by using lavaan package.
loading.value           This function specifies factor loading values.
sim.categoric           This function simulates (generates) categorical
                        data sets by given a Confirmatory Factor
                        Analysis model.
sim.normal              This function simulates (generates) data sets
                        by given a Confirmatory Factor Analysis model.
sim.skewed              Simulates Data sets by given a Confirmatory
                        Factor Analysis model.
