one parameter family of curves

In this paper,it has been proved that the logormal distribution about parameter σ and μ,Γ distribution about parameter β and α are single parameter exponential race by the definition of single parameter exponential race.

通过单参数的指数族定义,证明了对数正态分布关于参数σ和μ,Γ分布关于参数β和α是单参数的指数族。