stationary pleaze help!!!!!!

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des_poi_na1988
Posts: 2
Joined: Wed Aug 31, 2011 4:48 pm

stationary pleaze help!!!!!!

Postby des_poi_na1988 » Wed Aug 31, 2011 5:16 pm

how can i understand if a time serie is nonstationary in the variance from the time-plot? pleaze help me :(
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isaiah
Posts: 14
Joined: Wed Sep 07, 2011 1:06 pm

Re: stationary pleaze help!!!!!!

Postby isaiah » Wed Sep 07, 2011 10:22 pm

You can do it graphically, using autocorrelation or unit test. Which version are you using?

Isaiah
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