Dear Gretl Users, I have a question regarding repeated observations in Panel Data regression. I have observations for January to December for 3 years so I have 3 January observations, 3 February observations, 3 March observations etc. I would like to find out the time fixed effects of January through to December. However, when I put this into Gretl, it recognizes all this as (3x12)=36 different time periods. How can I get Gretl to process this as only 12 different time periods? Thank you. Kind regards, Beatrice