Gtools Macro -

The gtools package provides significant speed improvements—sometimes up to 60x—over native Stata counterparts. Gtools: Home

local predictors "x1 x2 x3" local interactions : list local(predictors) @ "c.x##c." local full_formula : list local(predictors) | local(interactions) qui reg y `full_formula' gtools macro

foreach q of local wanted forvalues y = 2010/2020 gen q q'_ y' = (year== y' & quarter== q') gtools macro