Hi there, I am having some issues for xtfmb function.
My command is xtfmb y x1 x2 x3, verbose.
Also, I run tsset(firm year) before running xtfmb command.
Yet, while I run the xtfmb command,
I get this result:
unknown egen function group()
r(133);
How can I solve this problem?Pls help! Thanks