Hello....
I'm sorry I've forgotten to add example. This time I've attached data file. 
I think that there is something wrong with my data set.
When I run script:
panel c const y r time
omit --auto
there is information about error in data but I don't know why.
Thanks for help.
Best wishes,
Mariusz
Poland
    
    
    
        Attachments:
        
        
            - UE_a.gdt
                (application/x-gretldata — 5.5 KB)