merge1.dta
(66.82 KB)
数据如上,我要用ss_dollars对id进行回归,代码如下:
global ylist ss_dollars
global xlist id
logit $ylist $xlist
但是每次都提示如下错误:
outcome does not vary; remember:
0 = negative outcome,
all other nonmissing values = positive outcome
r(2000);
请各位大侠帮助解决,多谢!


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