In this paper, Gibbs sampling is combined with maximum likelihood tree to modify the missing data randomly initialized and regulate maximum likelihood tree iteratively so as to get complete data set. 文章结合最大似然树和Gibbs抽样,通过对随机初始化(RI)的丢失数据和最大似然树进行迭代修正调整,得到修复后的完整数据集;