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chzhiyu

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[交流] 【求助】帮忙修改matlab 关于多项式拟合系数的程序已有2人参与

clc
clear all
X=[900,950,1000,1050,1100,1150,1200]
Y=[-1,0,1,1.699]
Z=[
133.501 123.949 91.4564 70.3825 46.661 39.617 23.3159
187.145 187.145 139.5592 102.036 71.6103 63.1213 42.2399
259.807 222.929 186.213 164.972 118.145 92.631 72.015
286.845 259.389 256.336 181.183 139.285 116.330 84.791
]
Z=log10(Z)
Xi=(900:1:1200)
Yi=(-1:0.02:1.699)
Zi=interp2(X,Y,Z,Xi,Yi','spline')
Y2=[ Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi' Yi']
p = polyfit (Y2,Zi,2)
我想找到多项式拟合的系数，但是运行程序只是一组系数，但是我想找到每组数据的系数，不知道错在哪  请高手指教，不胜感激

[ Last edited by chzhiyu on 2010-4-19 at 20:45 ]

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