参考陈强老师的书做的,结果没出结果。显示为 Report - Propensity score estimation with logit command Atention: _pscore is estimated at baseline
outcome does not vary; remember:
0 = negative outcome,
all other nonmissing values = positive outcome
r(2000);
求问大神是怎么回事啊


雷达卡



京公网安备 11010802022788号







