Forecasting using SAS Forecast Server, SAS/ETS, and more

Estimation of VAR(1) -ARCH(1) model with 212 data points.

Reply
New Contributor
Posts: 2

Estimation of VAR(1) -ARCH(1) model with 212 data points.

Hi all,

I have  three stationary variables  with 212 data points for each variable.

I am trying to run VAR(1) -ARCH(1) model but it is showing the following error.

ERROR: QUANEW optimization cannot be completed. QUANEW needs more than 200 iterations or 2000 function calls.

I am attaching the textfile as well as my code.

Is there any way  i can estimate the  the model correctly.Is there any other optimization technique or is there any way i can compute  the model.

I used the following codes provided in this link  SAS/ETS(R) 9.2 User's Guide

Attachment
SAS Employee
Posts: 416

Re: Estimation of VAR(1) -ARCH(1) model with 212 data points.

Hello -

It seems to me that the optimization solver did not converge. In my opinion you should either change the nonlinear optimization technique or increase the number of iterations for your current solver.

For details please refer to http://support.sas.com/documentation/cdl/en/etsug/66100/HTML/default/viewer.htm#etsug_varmax_syntax1... and  http://support.sas.com/documentation/cdl/en/etsug/66100/HTML/default/viewer.htm#etsug_nlomet_toc.htm

Thanks,

Udo

Ask a Question
Discussion stats
  • 1 reply
  • 404 views
  • 0 likes
  • 2 in conversation