nested model fit using F-test

[naila hameed]

what is the correct command to find better model in stata.
ftest (Unrestricted model) (Restricted model)
OR
ftest (Restricted model) (Unrestricted model)

confused about the sequence of model input

[Joro Kolev]

The correct command is that you estimate the unrestricted model, and then you test the constraint by using the -test- post estimation command.

[naila hameed]

i tested both restricted and unrestricted model and stored as m1 (unrestricted) m2(restricted). how to compare which one is better using f test