i wrote this instruction:
xi: poisson a i.year, exp (pop) irr
by default STATA gives me the year 2015 as a reference category. For example to change the reference category (example I want 2016 as a reference) how to do? tHANKS TO EVERYBODY Tommaso
change reference category in stata 12 - POISSON REGRESSION
Hi to everybody
i wrote this instruction:
xi: poisson a i.year, exp (pop) irr
by default STATA gives me the year 2015 as a reference category. For example to change the reference category (example I want 2016 as a reference) how to do? tHANKS TO EVERYBODY Tommaso
i wrote this instruction:
xi: poisson a i.year, exp (pop) irr
by default STATA gives me the year 2015 as a reference category. For example to change the reference category (example I want 2016 as a reference) how to do? tHANKS TO EVERYBODY Tommaso
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