Ridge (Ridge Regression and Ridge Trace)

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EViews Gareth
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby EViews Gareth » Wed May 18, 2011 1:56 pm

Ridge Trace seems to work for me - I get a nice graph and table.
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stasibab
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Wed May 18, 2011 5:37 pm

EViews Gareth wrote:Ridge Trace seems to work for me - I get a nice graph and table.


Could you please enlighten me? Have you used the excel file?

I inserted to the existing file the forecast lrconsf from the excel (f row) . (as you will see in the new workfile I attached)

When I run the ridge trace what do I put in dependant: the forecast? lrconsf? I tried everything and I am just getting a blank graph?

I am new to Eviews, sorry for the 'stupid' questions!
Thanx in advance!
Attachments
housingfor.WF1
(11.97 KiB) Downloaded 305 times

EViews Gareth
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Re:

Postby EViews Gareth » Wed May 18, 2011 6:10 pm

stasibab wrote:In the ridge regression i put: dependant lrcons and independant: lrgdp lrprice
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stasibab
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Wed May 18, 2011 6:33 pm

As I said earlier the ridge regressions gives me the results, but the ridge trace add-in is giving me the blank graph

I made you a print screen and I think you will understand the problem.
Attachments
graph.jpg
graph.jpg (60.01 KiB) Viewed 7325 times
printscreen housing.jpg
printscreen housing.jpg (126.2 KiB) Viewed 7325 times

EViews Gareth
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby EViews Gareth » Wed May 18, 2011 7:19 pm

You appear to be entering only a single biasing constant for the Trace. As the instructions indicate, you need to enter a list of values.
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stasibab
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Wed May 18, 2011 7:29 pm

Thank you, that was clearly my bad!

But again one problem, hopefully the last!

Given the automated sort of values in the ridge trace (0 , 0.5..etc) I run it and I got the following error message!
Attachments
error.jpg
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EViews Gareth
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby EViews Gareth » Thu May 19, 2011 9:01 am

Hard to say without knowing what you did.
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stasibab
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Thu May 19, 2011 9:36 am

This is what I run! And I got the same error! I used an alternate sample and also got the same!

stasibab
Posts: 55
Joined: Sun May 08, 2011 2:20 pm

Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Thu May 19, 2011 9:38 am

stasibab wrote:This is what I run! And I got the same error! I used an alternate sample and also got the same!

forgot the image sorry!
Attachments
screen1.png
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EViews Gareth
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby EViews Gareth » Thu May 19, 2011 9:43 am

Works for me.
Attachments
ridgetrace.png
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stasibab
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Thu May 19, 2011 9:56 am

Unbelievable or what? We are doing the exact same thing and getting 2 different results. Perhaps I miss a plugin or something? I installed the plugin straight from the site, no problem in installation...

Do not know that to say...

startz
Non-normality and collinearity are NOT problems!
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Re: Ridge (Ridge Regression and Ridge Trace)

Postby startz » Thu May 19, 2011 11:04 am

Is your copy of EViews completely uptodate?

stasibab
Posts: 55
Joined: Sun May 08, 2011 2:20 pm

Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Thu May 19, 2011 3:10 pm

startz wrote:Is your copy of EViews completely uptodate?


At last!! The update was the problem!! I see the beautiful graph too!!!

Thanx a lot!!

stasibab
Posts: 55
Joined: Sun May 08, 2011 2:20 pm

Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Wed Jun 08, 2011 3:13 pm

Hello,

I would like to ask something more about the ridge regression. The baysan value has to be under 1??

Thank you in advance

stasibab
Posts: 55
Joined: Sun May 08, 2011 2:20 pm

Re: Ridge (Ridge Regression and Ridge Trace)

Postby stasibab » Wed Jun 08, 2011 3:25 pm

stasibab wrote:Hello,

I would like to ask something more about the ridge regression. The baysan value has to be under 1??

Thank you in advance


Added to my previous question about the ridge regression , I would like to ask you what exactly does the VIF represent in the ridge trace

Thanx again.


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