2、nt中是[2345].本实例是计算输入的期望和标准差。代码如下:viewplaincopytoclipboardprint?1.function [mean,stdev]=stats(vals) 2.%#eml 3.% calculates a statistical mean and standard deviation fo the values vals. 4.eml.extrinsic('plot'); 5.len=length(vals); 6.mean=avg(vals,len); 7.stdev=sqrt(su