Hello,
 
I am running Gretl 1.9.11 on Win 7 64 bit
 
Question about the GUI:
 
When I execute 
 
Save/Define New Variable (in a model tab after executing OLS) and input in the text box:
 
scalar b1=$coeff(IAU)
 
Everything works fine, but when after running OLS I execute  Add/ Define New Variable (in the main window) and input in the text box:
 
scalar b1=$coeff(IAU)
 
I get the following error message:
 
Invalid argument for function
'IAU': invalid argument for $coeff()
 
Is this expected behavior?
 
Thanks,
 
Logan