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rumengzhuo

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引用回帖:
10楼: Originally posted by feixiaolin at 2013-12-05 08:43:19
那么f(x)可理解为概率密度函数公式及类似的表达式。...

对的
11楼2013-12-06 09:24:36
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feixiaolin

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引用回帖:
5楼: Originally posted by rumengzhuo at 2013-12-04 08:49:41
求具体解法,谢谢...

let x=InvF(x),  
F(x)=Integrate[f(x), {x: -inf, x}]
dF(x)= f(x)dx, or  f(x)= F’(x)
T(x)= Integrate [ln(c*g(x)*F’(x)/ln2*dF(x))]+ numda*Integrate [dF(x)]
pDT(x)/pDf(x)= pDT(x)/pDF(x)* pDF(x)/ pDf(x)= pDT(x)/pDF(x)*x
pDT(x)/pDF(x)= ln(c*g(InvF(x))*F’(InvF(x))/ln2+ numda
pDT(x)/pDf(x)= x*{ ln(c*g(InvF(x))*F’(InvF(x))/ln2+ numda}
12楼2013-12-06 17:25:48
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