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> [1000fg] Need Help Arima Modelling
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Jun 17 2013 05:12pm
I need help in finding the appropriate ARIMA model for my series. (im working with EViews)

I plotted it:
=> saw that it's seasonal with a trend
=> took log of the series and removed seasonal trend by taking 12th difference of the 1st difference

plotted it again:
and looked at ACF&PACF:

But how can I find the right model now? Every AR MA combination I try seems to be a spurious regression. (ljung-box Q statistics p-value < 0.05)

Any experts here? :) Can offer up to 1000fg if you help me finding the appropriate model

Bumps are welcome ^^
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Jun 17 2013 05:14pm
wtf i dont wna see this shit
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Jun 17 2013 05:15pm
Huh? :P
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Jun 17 2013 05:16pm
Quit.
Play more video games.
Send fg.
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Jun 17 2013 05:17pm
bzT(k) = 1zT + 2zT1 + ::: + Tz1:
E

(T+kjT bzT(k))(zT+k T+kjT)jzT

=
= (T+kjT bzT(k))E

(zT+k T+kjT)jzT

= 0

zT(12) = 1
12
X12
j=1
bzT(j) = 1
12
X12
j=1
zT+j12 0:8
1
12
X12
j=1
aT+j121

This post was edited by abelcustoms on Jun 17 2013 05:18pm
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Jun 17 2013 05:17pm
Do you even Arima model bro?
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Jun 17 2013 05:19pm
Bah :bouncy: Gah. :wacko:
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Jun 17 2013 05:20pm
OP might as well have been typing his post in chinese
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Jun 17 2013 05:21pm
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Jun 17 2013 05:23pm
My puny negro brain cant comprehend this shit
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