Kevin Blaine
Participant
Post count: 45

Hi Dr. Shah — I’ve confirmed that the “no observations” scenario is the issue.

CODE:

. sys use auto
. tab make foreign if make=="Subaru"

                   | Car origin
    Make and model |   Foreign |     Total
-------------------+-----------+----------
            Subaru |         1 |         1 
-------------------+-----------+----------
             Total |         1 |         1 

. tab make foreign if make=="Subaru" & foreign==0
no observations

. asdocx tab make foreign if make=="Subaru" & foreign==0

no observations
    asdocx_tab_twovars():  3200  conformability error
                 -  function returned error
r(3200);

Is this something you’d be able to tweak in the program code to allow for?