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 } $. It is defined by following formula.
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${\alpha}$ = positive shape parameter.
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${\beta}$ = positive shape parameter.
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${x}$ = random variable.
Following diagram shows the probability density function with three different parameter combinations.
