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AC版 - help on variance of logistics distribution
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相关话题的讨论汇总
话题: variance话题: logistics话题: logistic话题: fisher
进入AC版参与讨论
1 (共1页)
i*****g
发帖数: 5
1
大虾救命!!!
How to find out the MLE of logistic distri.
f(x)=e^-1*(1+e^-1)^-2
it should be related to fisher information. but I do not
know how to calculate
the fisher information number.
also how to prove its variance=pi^2/3???
Thanks
t***y
发帖数: 110
2

~~~~~~~~~~~~~~~~~~~~~~
和和, 你的密度函数写错了叭?
里面一没有变量,二没有参数,
估计什么?

Logistic 分布的方插需要一个
公式:
k+1 2
infinity (-1) pi
Var(X) = 4 SUM -------- = ----
k = 1 2 3
k

【在 i*****g 的大作中提到】
: 大虾救命!!!
: How to find out the MLE of logistic distri.
: f(x)=e^-1*(1+e^-1)^-2
: it should be related to fisher information. but I do not
: know how to calculate
: the fisher information number.
: also how to prove its variance=pi^2/3???
: Thanks

1 (共1页)
进入AC版参与讨论
相关主题
保险公司technical interview 会怎么问?how do you deal with sparse data?
[合集] question about MLE今天早上google 统计面试的几个问题,新鲜热乎的
学术一个:不完全数据的统计怎么做? (转载)SVM (R)的结果能转成scorecard吗?
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相关话题的讨论汇总
话题: variance话题: logistics话题: logistic话题: fisher