送交者: HunHunSheng 于 2005-12-06, 16:26:25:

回答: I guess, is mortality rate the sample version of hazard function? 由 mangolasi 于 2005-12-06, 16:21:04:

HAZARD FUNCTION是关于在NEXT MOMENT死亡的条件概率分布密度，条件是活到t然后在t+dt内死亡的概率，让dt趋于
无穷小，然后就是微积分得干活了

这基本上没法给出一个绝对的函数，但搞统计
的有PROPORTIONAL HAZARD FUNCTION可以算
两个组之间的比例,比例可以假定为
和时间无关也可以假定和时间有关，往往
为了简化，假设和时间无关。

• But in its sample version (dt and d(people) can not be infinitely small), - mangolasi (227 bytes) 2005-12-06, 16:30:00
  • My recollection of hazard rate is (death)/remaining. - mangolasi (27 bytes) 2005-12-06, 16:37:37
  • surprising, you never learned duration model? - xj (76 bytes) 2005-12-06, 16:36:13
• 用人的寿命讲hazrd funtion刚开始比较大，然后下降，最后又上升 - HunHunSheng (44 bytes) 2005-12-06, 16:29:38
  • If you are not an actuary, I think you must be a very good student. - mangolasi (96 bytes) 2005-12-06, 16:42:51

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