Why stata command "twowayfeweights" not working?

07 June 2022 0 9K Report

Hi,

I runned following commands in stata:

twowayfeweights Y code year treat , type(feTR)

twowayfeweights Y code year treat , type(fdTR)

The first command worked perfectly (type- feTR). But after running the second command (type- fdTR) I am getting an error sign- "invalid syntax". I don't know why it is happening.

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