exm04091_1.m

MATLAB 6.5 从基础讲解其功能

%生成样本数据
X(:,1)=ones(10,1);X(1,1)=100;X(10,1)=0.01;
rand('state',1);randn('state',1)	%使均布及正态两随机发生器初始化
X(:,2)=rand(10,1);
X(:,3)=randn(10,1);X(:,3)=2*abs(min(X(:,3)))+X(:,3);
%计算一阶矩
Moment1.arithmetic=mean(X);Moment1.median=median(X);
Moment1.geometric=geomean(X);Moment1.harmmonic=harmmean(X);
%计算二阶矩
Moment2.Standard=std(X);Moment2.variance=var(X);
Moment2.absolute=mad(X);Moment2.range=range(X);
%结果显示
X,Moment1,Moment2