广义Γ分布的特性和应用  

The Characters and Application of Generalized Gamma Distribution

作　　者：金光炎[1] 董秀颖[2] 

机构地区：[1]安徽省.淮委水利科学研究院,安徽蚌埠233000 [2]水利部水文局,北京100053

出　　处：《水文》2003年第2期29-32,共4页Journal of China Hydrology

摘　　要：介绍了广义Γ分布———对数Γ分布和指数Γ分布的一些特性和应用。通过变数的平移和倍比变换,建立起统计参数之间的关系,并可利用三参数分布的有关表格(如模比系数KP值表)和适线方法,应用于四参数分布的频率计算上,使计算简化。Some characters and applications of generalized gamma distribution-- - log gamma distribution and exponential gamma distribution is introduced.Through the relationship between the variables before and after its location shift and the multiple transformation,it may be applied the related tables(such as the tables of modulus coefficient K P values)and curve fitting method of3-parameter distribution to frequency computation for-parameter distribution,thus the calculation will be simplified.

关 键 词：水文频率计算 广义г分布 对数г分布 指数г分布 适线法 

分 类 号：P333.9[天文地球—水文科学]