| To: | s-news@lists.biostat.wustl.edu |
|---|---|
| Subject: | ARIMA model |
| From: | "Jim Zhang" <jimzhang@alumni.brown.edu> |
| Date: | Tue, 20 Feb 2007 22:55:49 +0000 |
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This must be a rookie question. When I do ARIMA model, say the variables are $X_n$, do I have to first substract $X_n$ with its sample mean? Thx, -- ============== In deo speramus. |
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