what kind of data is used in the arima model for dlm is it possible to use arima as a state space what is the saturation of arima what phase of arima is optimization can an ima model predict capacity saturation in the arima model how do you maintain the saturatedity in arima model how to model saturated models why use arima model how to model saturation how do you optimize arima can you change the arima model what is the saturation of the arima model what makes a arima saturating can you model saturated model why is arima saturating which model does arima use what is saturation in arima model what is an arima model does arima model include exogenous variables