ARMA model

[Sergey Efremov <svefremov@xxxxxxxxx>]

List,

Does anyone have ARMA model coded for TradeStation. In
the following form:

yn+A1*yn-1+A2*yn-2+...+Ap*yn-p=en 

yn - current bar value of the model
en - noise with zero mean

Coefficients A1-Ap are updated on every bar.

Sergey