ex1507.m

数字信号处理的MATLAB实现

%例15-7 多元线性回归
x1 = [.2 .5 .6 .8 1.0 1.1]';
x2 = [.1 .3 .4 .9 1.1 1.4]';
y  = [.17 .26 .28 .23 .27 .24]';
X = [ones(size(x1))  x1  x2];
a = X\y