Statistics 简明教程

Statistics - Log Gamma Distribution

对数伽马分布是一种概率密度函数,具有正形状参数 $ {\alpha, \beta } $ 和位置参数 $ { \mu } $。它的定义如下式所示。

Log Gamma Distribution is a probability density function with positive shape parameters $ {\alpha, \beta } $ and location parameter $ { \mu } $. It is defined by following formula.

Formula

其中——

Where −

  1. ${\alpha}$ = positive shape parameter.

  2. ${\beta}$ = positive shape parameter.

  3. ${x}$ = random variable.

下图显示了具有三种不同参数组合的概率密度函数。

Following diagram shows the probability density function with three different parameter combinations.

log gamma distribution