Search found 10 matches

by Roman
Tue May 10, 2016 11:55 am
Forum: Estimation
Topic: BVAR (litterman prior)
Replies: 3
Views: 20025

Re: BVAR (litterman prior)

Hi Guys,

Need help about this, could you please detail the univariate case used for initial residual covariance ?
Is it a simple AR(p) on each endogenous variable (p being endogenous lags)?

Thanks

Roman
by Roman
Fri May 06, 2016 9:51 am
Forum: Estimation
Topic: BVAR (litterman prior)
Replies: 3
Views: 20025

BVAR (litterman prior)

Hi Guys, In the BVAR doc for the litterman prior, it is mentioned that EViews offers three choices of an estimator of the Matrix SIGMA. One of them is the Univariate AR where SIGMA is a diagonal matrix where the (i,i)-th element is given by the standard OLS estimate of the error variance calculated ...
by Roman
Mon Apr 04, 2016 1:31 pm
Forum: Estimation
Topic: Variables limitation in VAR models
Replies: 5
Views: 5845

Re: Variables limitation in VAR models

Unfortunately it is the BVAR I am interested in (need to shrink the system).
The only alternative that I see is calling R functions from the MSBVAR package...
by Roman
Mon Apr 04, 2016 12:46 pm
Forum: Estimation
Topic: Variables limitation in VAR models
Replies: 5
Views: 5845

Re: Variables limitation in VAR models

Hi Gareth,

Thanks for prompt reply. It is quite urgent for me to have that feature.
Do you think you could release this feature in a patch ?
by Roman
Mon Apr 04, 2016 10:53 am
Forum: Estimation
Topic: Variables limitation in VAR models
Replies: 5
Views: 5845

Variables limitation in VAR models

Hi Guys,

There is a limitation of 30 endogenous variables for VAR models (including BVAR). Is there a way to turn that off ?
If not, what do you recommend to overcome that ?

Thank you.

Regards,

Roman
by Roman
Tue Oct 27, 2015 2:38 pm
Forum: Estimation
Topic: Constrained least square and optimization
Replies: 3
Views: 8705

Constrained least square and optimization

Hello, I have EViews 9. I would have 2 questions about constrained least square estimation: 1. Let's say I want to estimate the equation Y=Beta_0 + Beta_1*X+res I would like to know if there is a way to impose the estimation of Betas under the constraint of non negative Y (ie: Y>0) in the fitting pr...
by Roman
Mon Oct 26, 2015 10:08 am
Forum: Models
Topic: Reach data of a stochastic simulation for error bounds
Replies: 4
Views: 8713

Re: Reach data of a stochastic simulation for error bounds

Hi Gareth, Thanks for your answer. Just other users information, I found what I needed for my fan charts statistics using the @quantilesby function. The function allows to compute different quantiles by value of a cross section (useful with panel data). These values can then be used in a mixed graph...
by Roman
Mon Oct 12, 2015 1:13 pm
Forum: Models
Topic: Reach data of a stochastic simulation for error bounds
Replies: 4
Views: 8713

Re: Reach data of a stochastic simulation for error bounds

Thanks,

Any idea for the fan charts ?

Regards,

R
by Roman
Thu Oct 08, 2015 3:23 pm
Forum: Models
Topic: Reach data of a stochastic simulation for error bounds
Replies: 4
Views: 8713

Reach data of a stochastic simulation for error bounds

Hi, I use EViews 9. I have built a system of equations and run a stochastic simulation in the solve interface. EViews interface provides some outputs like Mean+/- 2 SD for each forecast. I have several questions: 1- I would be interested in getting other outputs such as median and other percentiles ...
by Roman
Thu Oct 08, 2015 2:40 pm
Forum: Data Manipulation
Topic: importing data from Moody's Economy.com
Replies: 5
Views: 56433

importing data from Moody's Economy.com

Hello,

I use the enterprise version of EViews 9 and have access to Moody's services. Is it possible to download Moody's data directly from their web servers using the database registry entry feature ?

Thanks for your answer.

Regards,

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