我现在正在做logistic回归,遇到了一个问题。我运行时出现warning:The parameter covariance matrix cannot bu computed. Remaining statistcs will be omitted.
这是为什么呢?
并且我的检验值出现如下异常情况,问题出在哪?
Model Summary
step -2Log likelihood Cox& Snell R Square Nagelkerke R Square
1 .000a .738 1.000
a Estimation terminated at iteration number 22 because a perfect fit is detected. This solution is not unique.
因为急着要,所以希望各位路过的,知道的不吝赐教,谢谢!
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