Stata Panel Data Exclusive 'link' Jun 2026
reshape long y x, i(id) j(year)
Panel data (or longitudinal data) tracks the same entities (like firms, countries, or people) over multiple time periods. Handling it in Stata requires a specific workflow to manage the dual nature of cross-sectional and time-series dimensions. 1. Structure Your Data (Long vs. Wide) stata panel data exclusive
* Hausman estimates store fe xtreg ln_y x1 x2 i.year, re estimates store re hausman fe re reshape long y x, i(id) j(year) Panel data
He can see the true impact of changing variables, like R&D spending, without the "noise" of unmeasured traits. The Balancing Act reshape long y x
* Check the pattern of missing data xtdescribe * Tabulate the distribution of observations per unit xtsum Use code with caution. Dealing with Duplicates