ARCHmX                  Fitting an ARCH-m(X) model
ARCHmXAdditive          Creating and fitting an Additive ARCH-m(X)
                        model for variable selection
GARCHX                  Fitting a GARCH-X model
sim.ARCHmX              Simulating data from an ARCH-m(X) process
sim.ARCHmXAdditive      Simulate data from an ARCHmXAdditive model
sim.GARCHX              Simulate GARCHX model
stepwise                Performing Stepwise Variable Selection for an
                        ARCH-m(X) or GARCHX Process
