hutu5565 发表于 2010-10-27 12:13 
怎样用excel 逆累积分布函数(inverse cdf function)求10,000个关于对数正态分布(LN distribution)的随机值(random value)????
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版主coral033:
Returns the inverse of the lognormal cumulative distribution function of x, where ln(x) is normally distributed with parameters mean and standard_dev. If p = LOGNORMDIST(x,...) then LOGINV(p,...) = x.
Use the lognormal distribution to analyze logarithmically transformed data.
Syntax
LOGINV(probability,mean,standard_dev)
Probability is a probability associated with the lognormal distribution.
Mean is the mean of ln(x). Standard_dev is the standard deviation of ln(x).
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| 0.039084 | Probability associated with the lognormal distribution |
| 3.5 | Mean of ln(x) |
| 1.2 | Standard deviation of ln(x) |
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