[img]file:///C:\Users\h2o\Documents\Tencent Files\327250828\Image\C2C\Q2JT@LWI6)[@UM)471VJF%S.png[/img][img]file:///C:\Users\h2o\Documents\Tencent Files\327250828\Image\C2C\Q2JT@LWI6)[@UM)471VJF%S.png[/img]在做ologit和oprobit模型时，结果出现：Note: 1 observation completely determined.  Standard errors questionable.不知道什么原因，需要处理的话如何处理？