用stata做logistics回归，加上dummy（18）之后，样本量8000，出现以下情况：

note: dummy4 != 0 predicts failure perfectly
      dummy4 dropped and 1 obs not used

note: dummy12 != 0 predicts success perfectly
      dummy12 dropped and 2 obs not used

note: dummy14 != 0 predicts failure perfectly
      dummy14 dropped and 1 obs not used

note: dummy17 != 0 predicts success perfectly
      dummy17 dropped and 2 obs not used



请问各位老师好，这种情况是出错了还是怎样？计算出的结果能放在论文中吗？