对于初学者具有参考意义，应用小区域方差对比，程序简单，模拟数据分析处理的过程，最大似然（ML）准则和最大后验概率（MAP）准则，快速扩展随机生成树算法。- For beginners with a reference value, Application of small area variance comparison, simple procedures, Analog data analysis processing, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Rapid expansion of random spanning tree algorithm.