Search found 4 matches

by SnakeS2k
Tue Oct 07, 2014 3:31 am
Forum: Estimation
Topic: Singular covariance in SSpace estimation.
Replies: 8
Views: 15045

Re: Singular covariance in SSpace estimation.

Anyone?
by SnakeS2k
Mon Oct 06, 2014 3:27 am
Forum: Estimation
Topic: Singular covariance in SSpace estimation.
Replies: 8
Views: 15045

Re: Singular covariance in SSpace estimation.

I defined better my parameters. But there is something in eviews that is not clear to me. I try to explain it: Step 1: set initial value for parameters => "convergence" Step 2: try again estimate => "near singular Matrix" If I put to zero c vector of parameters, where Eviews stor...
by SnakeS2k
Thu Oct 02, 2014 2:49 am
Forum: Estimation
Topic: Singular covariance in SSpace estimation.
Replies: 8
Views: 15045

Re: Singular covariance in SSpace estimation.

After an Initial calibration with starting value that give me a convergence even if with a failure (read below). Sspace: DIEBOLD_KALMAN_FILTER Method: Maximum likelihood (Marquardt) Date: 10/02/14 Time: 09:16 Sample: 7/19/1999 1/17/2014 Included observations: 3711 Failure to improve Likelihood afte...
by SnakeS2k
Wed Sep 24, 2014 4:23 am
Forum: Econometric Discussions
Topic: Non Stationary Series and ARMA model
Replies: 0
Views: 2661

Non Stationary Series and ARMA model

Reading some papers as "Forecasting the term structure of government bond yields" by Diebold or "The Impact of the sovereign debt crisis on the activity of italian bank" by albertazzi and other, I noticed that they do autoregression on series that are not stationary. This sound a...

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