hi, could anyone helps me because i wonder how to write seasonal arma in the estimation equation. firstly, i had a rainfall data, already stationary in nature. then when i plot the correlogram i notice that the spikes were to small(almost no significant spikes). Then do i need to do differencing process.
below is the attachment about the data, plz help me
Seasonal ARMA
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harithstats
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Seasonal ARMA
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harithstats
- Posts: 7
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Re: Seasonal ARMA
plz anyone could help me . i have SARIMA(3,0,2)(0,0,1) S= 12. I converted into ARMA model which become ARMA(3,14).. by using this formula SARIMA(p,d,q)(P,D,Q), s=12 --> ARMA(PS +p +d+DS, QS +q)
my question is, is that correct what im doing.
my question is, is that correct what im doing.
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