第二次STATA作業參考coding

以下為建議的指令。

use CPS04.dta, clear
1.)
sum ahe
2.)
sum ahe
3.)
scatter ahe age
/*positive correlation*/
4.)
hist ahe
5.)
cor ahe age
6.)
codebook female
7.)
reg ahe age female bachelor, r
8.)
test female
9.)
test bachelor
10.)
test femlae bachelor
11.)
gen ln_age=ln(age)
reg ahe ln_age, r
/*variable in natural log captures the effcet of its percentage change on the regressand*/
12.)
sort bachelor
gen z=_n
reg ahe z, r
/*this outcome illustrates the difference between statistical significance and economic significance*/