摘要: 理论根据:DX^2=EX^2-(EX)^2 实现: static Tuple<double,double,double> ComputeVariance2(double[] a) { double variance = 0; //方差 double sum = 0; //总和 double sum2 阅读全文
posted @ 2016-05-26 14:04 夏至千秋 阅读(4875) 评论(0) 推荐(0) 编辑