数理统计相关程序，包括求个参数的极大似然估计、分析收敛速度、检验假设、分析有限样本性质、随机数生成筛选抽样、分析相合性-Mathematical statistics related procedures, including the estimation of the parameters of the maximum likelihood estimation, analysis of convergence rate, test assumptions, analysis of the finite sample properties, random number generation screening sampling, analysis consistency