*
* Example 4.5 from page 55
*
open data tablef4-1[1].txt
data(format=prn,org=columns,skip=36) 1 753 lfp whrs kl6 k618 wa we ww rpwg hhrs ha he hw faminc mtr wmed wfed un cit
*
* Variables are described in grnp051.prg
*
set logearn = log(whrs*ww)
set agesq   = wa**2
set kids    = (kl6+k618)>0
*
* Run the regression over the sample which has lfp equal to 1
*
linreg(smpl=lfp,vcv) logearn
# constant wa agesq we kids
*
* Testing a set of zero restrictions can be done using the instruction EXCLUDE.
* List the explanatory variables you want to test on the supplementary. Note that
* a test of all the slope coefficients is automatically included in any linear
* regression with an intercept. It's the regression's F statistic in the output.
* You can check to see that the two give the same result.
*
exclude(title="Test of All Slope Coefficients")
# wa agesq we kids