MULTICOLINEARITY

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Lol38
Posts: 45
Joined: Wed Oct 02, 2013 4:00 pm

MULTICOLINEARITY

Postby Lol38 » Thu Aug 28, 2014 5:27 pm

Hello,

Im trying to run a programme but it shows the message "near singular matrix. Regressors may be perfect collinear". I have calculated the level of multicolinearity and it is more than 210.

Is there any way to solve the multicolinearuty problem?

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13604
Joined: Tue Sep 16, 2008 5:38 pm

Re: MULTICOLINEARITY

Postby EViews Gareth » Thu Aug 28, 2014 5:45 pm

210?

startz
Non-normality and collinearity are NOT problems!
Posts: 3798
Joined: Wed Sep 17, 2008 2:25 pm

Re: MULTICOLINEARITY

Postby startz » Thu Aug 28, 2014 6:52 pm

Near perfect multicollinearity almost always indicates a specification mistake. In the rare instances where that isn't the case, the only cure is to get more data.

You might want to post your EViews workfile, including the equation you wish to estimate.

Lol38
Posts: 45
Joined: Wed Oct 02, 2013 4:00 pm

Re: MULTICOLINEARITY

Postby Lol38 » Thu Aug 28, 2014 6:54 pm

I mean that the multicolinearity is very high.

I have tried with Variance Inflation Factors but even deleting the serie that have the highest VIF, the problem persist.

Lol38
Posts: 45
Joined: Wed Oct 02, 2013 4:00 pm

Re: MULTICOLINEARITY

Postby Lol38 » Thu Aug 28, 2014 7:00 pm

It is very difficult to post the workfile because it is a mix from different data sources but here i share my programme.
tesis.prg
(28.72 KiB) Downloaded 315 times

startz
Non-normality and collinearity are NOT problems!
Posts: 3798
Joined: Wed Sep 17, 2008 2:25 pm

Re: MULTICOLINEARITY

Postby startz » Thu Aug 28, 2014 8:04 pm

You don't need to post the workfile if you don't want to, but no one can run the program without it. Nor is there anyway to tell what the data looks like or which of the 100+ equations has the problem.

Lol38
Posts: 45
Joined: Wed Oct 02, 2013 4:00 pm

Re: MULTICOLINEARITY

Postby Lol38 » Thu Aug 28, 2014 8:25 pm

Ok, the equation looks like this.
equation.png
equation.png (104.68 KiB) Viewed 5369 times

startz
Non-normality and collinearity are NOT problems!
Posts: 3798
Joined: Wed Sep 17, 2008 2:25 pm

Re: MULTICOLINEARITY

Postby startz » Thu Aug 28, 2014 8:35 pm

Something doesn't make any sense. When EViews says "near singular matrix," it won't estimate the equation.


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