ARMA.model defines an ARMA model as input for the
argument user of tsgui
Usage
ARMA.model(p.max=3, q.max=3)
Arguments
p.max,q.max
non-negative integer.
Any ARMA(p,q) model can be modelled in the gui
with \(p \le\)p.max and \(q \le\)q.max.
Note that p.max + q.max should not be larger than
6. Otherwise gui cannot manage the abundance of parameters.