根据贝叶斯网络结构bnt，随机产生nsamples条样本集，样本集的数据缺失率为miss_perc-BNT based on bayesian network structure, random generation nsamples sample set, data loss rate is miss_perc sample set

Written by Kevin Murphy, 1997--2002. Last updated: 19 October 2007. As of January 2014, this is maintained on Github at https://github.com/bayesnet/bnt