*
* Example 2.5 from page 35
*
open data vote1.raw
data(format=free,org=columns) 1 173 state district democa votea expenda expendb prtystra lexpenda lexpendb sharea
*
linreg votea
# constant sharea
*
disp "Predicted Share of the Vote at 50-50 Expenditures" %beta(1)+%beta(2)*50.0