Stata 做GPSM问题

Stata跑GPSM,为啥跑不出来
为什么倾向得分计算完之后区分不出两组值啊,我看也有人发帖了 但是没人回复具体原因

The set of the potential treatment values is divided into 1 intervals

The values of the gpscore evaluated at the representative point of each
treatment interval are divided into 10 intervals



Summary statistics of the distribution of the GPS evaluated
at the representative point of each treatment interval



Test that the conditional mean of the pre-treatment variables given the generalized
propensity score is not different between units who belong to a particular treatment
interval and units who belong to all other treatment intervals


1 group found, 2 required

已尝试查找原始协变量缺失值