Is this procedure holds only for bi variate VAR http://support.sas.com/documentation/cdl/en/etsug/60372/HTML/default/viewer.htm#etsug_varmax_sect037.htm proc varmax data=garch; model y1 y2 / p=1 print=(roots estimates diagnose); garch q=1; nloptions tech=qn; run; Does the code holds good only for two variables. I have a data set containing 3 variables which are named as dc, i and e. When i run the same code for the three variables proc varmax data=mydata; model dc i e / p=1 print=(roots estimates diagnose); garch q=1; nloptions tech=qn; The following error message appears on my screen ------------------------------------------------------- NOTE: The default (METHOD=ML) is used. ERROR: QUANEW Optimization cannot be completed. NOTE: QUANEW needs more than 200 iterations or 2000 function calls. ERROR: Optimization cannot be completed. NOTE: PROCEDURE VARMAX used (Total process time): real time 2.19 seconds cpu time 2.07 seconds ------------------------------------------------------- Is there any problem with my data , because the same message appears when I use other non linear optimizing techniques provided in the link below. http://support.sas.com/documentation/cdl/en/etsug/60372/HTML/default/viewer.htm#etsug_nlomet_sect005.htm For convenience I am also attaching my data file in excel.
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