共回答了18个问题采纳率：94.4%

这是财政收入预测问题：财政收入与国民收入、工业总产值、农业总产值、总人口、就业入口、固定资产投资等因素的关系.仅供参考：

function yy=model(beta0,X)

a=beta0(1);

b=beta0(2);

c=beta0(3);

d=beta0(4);

e=beta0(5);

f=beta0(6);

x1=X(:,1);

x2=X(:,2);

x3=X(:,3);

x4=X(:,4);

x5=X(:,5);

x6=X(:,6);

yy=a*x1+b*x2+c*x3+d*x4+e*x5+f*x6;

主程序：

X=[598.00 349.00 461.00 57482.00 20729.00 44.00

586.00 455.00 475.00 58796.00 21364.00 89.00

707.00 520.00 491.00 60266.00 21832.00 97.00

737.00 558.00 529.00 61465.00 22328.00 98.00

825.00 715.00 556.00 62828.00 23018.00 150.00

837.00 798.00 575.00 64653.00 23711.00 139.00

1028.00 1235.00 598.00 65994.00 26600.00 256.00

1114.00 1681.00 509.00 67207.00 26173.00 338.00

1079.00 1870.00 444.00 66207.00 25880.00 380.00

757.00 1156.00 434.00 65859.00 25590.00 138.00

677.00 964.00 461.00 67295.00 25110.00 66.00

779.00 1046.00 514.00 69172.00 26640.00 85.00

943.00 1250.00 584.00 70499.00 27736.00 129.00

1152.00 1581.00 632.00 72538.00 28670.00 175.00

1322.00 1911.00 687.00 74542.00 29805.00 212.00

1249.00 1647.00 697.00 76368.00 30814.00 156.00

1187.00 1565.00 680.00 78534.00 31915.00 127.00

1372.00 2101.00 688.00 80671.00 33225.00 207.00

1638.00 2747.00 767.00 82992.00 34432.00 312.00

1780.00 3156.00 790.00 85229.00 35620.00 355.00

1833.00 3365.00 789.00 87177.00 35854.00 354.00

1978.00 3684.00 855.00 89211.00 36652.00 374.00

1993.00 3696.00 891.00 90859.00 37369.00 393.00

2121.00 4254.00 932.00 92421.00 38168.00 462.00

2052.00 4309.00 955.00 93717.00 38834.00 443.00

2189.00 4925.00 971.00 94974.00 39377.00 454.00

2475.00 5590.00 1058.00 96259.00 39856.00 550.00

2702.00 6065.00 1150.00 97542.00 40581.00 564.00

2791.00 6592.00 1194.00 98705.00 41896.00 568.00

2927.00 6862.00 1273.00 100072.0 43280.00 496.00];

y=[184.00 216.00 248.00 254.00 268.00 286.00 357.00 444.00 506.00 ...

271.00 230.00 266.00 323.00 393.00 466.00 352.00 303.00 447.00 ...

564.00 638.00 658.00 691.00 655.00 692.00 657.00 723.00 922.00 ...

890.00 826.00 810.0]';

beta0=[0.50 -0.03 -0.60 0.01 -0.02 0.35];

betafit = nlinfit(X,y,'model',beta0)

1年前

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