第七届西南大学优秀建模论文

0.7 0.73 0.75 0.76

];X=[ones(24,1) x1' x2' x3' (x1.^2)' (x2.^2)' (x3.^2)' (x1.^3)' (x2.^3)' (x3.^3)' (x1.^4)' (x2.^4)' (x3.^4)' (x1.^5)' (x2.^5)' (x3.^5)'];

>> Y=y';

>> [b,bint,r,rint,stats]=regress(Y,X);

Warning: X is rank deficient to within machine precision. > In regress at 78 >> b,bint,stats b =

0 -7.5351 21.5017 0.1273 1.2206 -10.1463 -0.0084 -0.0960 2.3555 0.0002 0.0037 -0.2680 -0.0000 -0.0001 0.0119 -0.0000

bint =

0 0 -51.8788 36.8086 -101.5822 144.5856 -0.0297 0.2842 -6.0562 8.4974 -67.0501 46.7576 -0.0305 0.0136 -0.6755 0.4835 -10.6063 15.3174 -0.0011 0.0016 -0.0187 0.0261 -1.7237 1.1877 -0.0000 0.0000

19

-0.0004 0.0003 -0.0526 0.0765 -0.0000 0.0000 stats =

0.9748 24.9092 0.0000 0.0006

20