Stata Panel Data (2025)

Once set, you can use the xtreg suite of commands for linear models:

After xtreg :

command, turning those names into blue, labeled numeric values [3]. Now for the magic moment: declaring the structure. You type the command that changes everything: xtset country1 year Use code with caution. Copied to clipboard stata panel data

For binary dependent variables:

xtreg y x1 x2 i.year, fe

Raw data often arrives in “wide” format (one row per unit, multiple columns for time) or “long” format (multiple rows per unit). Stata prefers .

Now go analyze—and let your panels speak. Once set, you can use the xtreg suite

Shows the participation pattern of entities over time.