Hello:
 
I have a series of monthly data which alos has seasonality, and I was
trying to model it as a seasonal ARIMA model. I wasnt sure how to use
arima function in R to model a seasonal time series (in fact my
knowledge of ARMA model is quite rudimentary). Can someone help me in
this regard, or can point me to some example code or other R resources?
Another question: how far the forecasts from such a model make sense??
 
thanks
Swaroop
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