Re: [R] Fwd: time series regression

From: Hannu Kahra <hkahra_at_gmail.com>
Date: Thu, 20 Mar 2008 18:32:53 +0200

Use the arima function with the xreg option that is a vector or matrix of external regressors. Use AIC or BIC when identifying the error process.

Hannu

On Thu, Mar 20, 2008 at 5:54 PM, bereket weldeslassie <berekket_at_gmail.com> wrote:

> Hi Everyone,
> One more information to my question. I am trying to do a time series
> regression using the lm function. *My intention is to investigate the
> relationship between a dependent time series variable and several
> independent time series variables.* According to the durbin watson test
> the
> errors are autocorrelated. And then I tried to use the gls function to
> accomodate for the autocorrelated errors. My question is how do I know
> what
> ARMA process (order) to use in the gls function? Or is there any other way
> to do the time series regression in R? I highly appreciate your help.
> Thanks,
> Bereket
>
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>
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