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¼±Çó¶àÔªÏßÐԻعématlab´úÂë ÎÒÓõÄÊÇmatlab7.0
x1=[400 600 500 600 800 800 500 450 1000 1600];
x2=[100 150 100 80 350 350 100 200 100 1000];      
x3=[200 350 300 300 300 300 350 500 500 450];
x4=[50 100 100 220 350 450 50 300 0 300];
y=[750 1200 1000 1200 1800 1900 1000 1450 1600 2850]£»
y=b0+b1*x1+b2*x2+b3*x3+b4*x4
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QQ:1272394845
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math2000

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Package: ½ð±Ò+10, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ËäÈ»ÎÒʺó×Ô¼º×ö³öÀ´ÁË£¬·¢ÏÖÈç´Ë¼òµ¥£¬µ«»¹ÊǸÐлÄãµÄ»Ø´ð£¬ÒÔºó¶à½»Á÷ 2012-05-21 11:57:51
x0= ones(size(X1));
X = [x0';x1';x2';x3';x4'];
y = y';
[b,bint]=regress(y,x)
2Â¥2012-05-20 21:55:06
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СÓêÃÈÃÈ: ½ð±Ò+3, лл¹Ø×¢~ 2012-09-27 14:42:58
t = {{400, 100, 200, 50, 750}, {600, 150, 350, 100,
    1200}, {500, 100, 300, 100, 1000}, {600, 80, 300, 220,
    1200}, {800, 350, 300, 350, 1800}, {800, 350, 300, 450,
    1900}, {500, 100, 350, 50, 1000}, {450, 200, 500, 300,
    1450}, {1000, 100, 500, 0, 1600}, {1600, 100, 450, 300, 2850}};
Fit[t, {1, x1, x2, x3, x4}, {x1, x2, x3, x4}]

-66.9384 + 1.26842 x1 + 0.265036 x2 + 0.874557 x3 + 1.3993 x4

mathematica ½á¹û
3Â¥2012-09-26 16:05:09
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