摘要
收入分布函数的估计方法主要有参数估计法与非参数估计的方法.利用参数估计方法,依据黑龙江省及国家城镇居民人均可支配收入数据,分别采用极大似然法与分段计算分布总体中的参数,确定收入分布函数,然后根据分布函数与实际数据的拟合状况,验证黑龙江省及国家人均可支配收入服从对数正态分布,但是参数的确定方式决定了拟合的有效性.
The estimation method of income distribution function mainly has parameter estimation method and non parameter estimation method. The parameters estimation meth- ods, according to the Heilongjiang province and country per capita disposable income data, respectively, using maximum likelihood method and piecewise calculation parameters of the overall distribution, determining the distribution function, then according to the fitting of distribution function and the actual data to verify, Heilongjiang Province and country per capita disposable income obey lognormal distribution. But the determination method of parameters determines the validity of the fitting.
出处
《数学的实践与认识》
北大核心
2017年第16期315-320,共6页
Mathematics in Practice and Theory
关键词
收入分布函数
对数正态分布
拟合
Income distribution fuaction
log normal distribut
fitting
