我做了如下操作
ssc install cem
use http://gking.harvard.edu/cem/lalonde.dta, clear
imb age education black nodegree re74, treatment(treated)
结果显示:
. use http://gking.harvard.edu/cem/lalonde.dta, clear
(Written by R. )
. imb age education black nodegree re74, treatment(treated)
file c:\ado\plus/c/cem-mata.do not found
(error occurred while loading imb.ado)
r(601);
请问高手,这是肿么啦?我用的是破解版的stata 12.0