matlab怎么拟合Z=A+BX+CY二元函数求解系数A,B,CZ=[0.5,0.4.0.3,0.250,2,0.15,0.1];X=[6303,4921,3544,2880,2248,1433,964];Y=[980,738,574,500,365,267,150];希望能够将数据转化为三维数字图形!

Question

matlab 怎么拟合 Z=A+BX+CY二元函数求解系数A,B,C
Z=[0.5,0.4.0.3 ,0.250,2,0.15,0.1 ];
X=[6303,4921,3544,2880,2248,1433,964];
Y=[980,738,574,500,365,267,150];
希望能够将数据转化为三维数字图形!

Answer 1

Z=[0.5 0.4 0.3 0.25 0.2 0.15 0.1];
X=[6303 4921 3544 2880 2248 1433 964];
Y=[980 738 574 500 365 267 150];
M=[X;Y]';
z=Z';
b=regress(z,[ones(length(X),1) M]);
A=b(1);
B=b(2);
C=b(3);
A
B
C