Question

如何用MATLAB最小二乘法得出回归方程系数

Answer 1

实验数据如下：
X Y C
1100.21 57.66 1.8
1157.88 57.79 1.7
1272.85 58.03 1.67
1330.34 58.22 1.67
1389 57.69 1.7
1590 57.01 1.67
1820 55.42 1.6
2049 59.35 1.5
2308 58.32 1.56
2596 57.28 1.6
2711 57.13 1.368
2826 55.61 1.33
2883 54.79 1.315
2940 53.78 1.325
3001 54.41 1.3
3117 55.93 1.2495
3291 57.15 1.28
3377 58.05 1.25
3522 58.41 1.31
3725 57.61 1.31
3899 53.55 1.195
4015 51.22 1.178
4188 50.89 1.185

这个结果也不错
a= -22.138317356041348,
m=0.15518143579781146,
n= -0.8131226470738243,
b=27.533718671542626,
p= -0.463896262778254