Robust
att | Coef. Std. Err. z P>|z| [95% Conf. Interval]
/cut1 | -1.925169 .0935228 -2.108471 -1.741868
/cut2 | -1.457269 .0921032 -1.637788 -1.27675
/cut3 | -.5608753 .0913741 -.7399652 -.3817853
/cut4 | -.1363567 .0914852 -.3156643 .042951
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被解释变量(att)是1-5。求问为什么oprobit没有constant(而probit有),其次这些cut改怎么理解和解释。谢谢!