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ÓÀÔ¶µÄ202(½ð±Ò+2,VIP+0):лл
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ÔÚÓÃREGRESSÕâ¸öº¯Êý¼ÆËãʱ,×Ô±äÁ¿¾ØÕóÖÐ,Ó¦¼ÓÒ»Áг£Êý1,¼´×Ô±äÁ¿µÄµÚÒ»Áж¼Îª1,ÕâÑùËã,½á¹ûÖвÅÓг£ÊýÏîµÄ Äãд³ÉÕâÑù¾Í¿ÉÒÔÁË A=[8.907 1 6.648 -0.61278 10.417 1 8.686 0.477 11.585 1 9.145 0 12.006 1 9.027 0.824 14.799 1 11.238 1] y=A(:,1),x=A(:,2:4) [B ,bint,r,rint,stats]=regress(Y,X) a=B(3),b=B(2),c=B(1) |
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Y=[1.29,1.67,2.02,2.33,2.515,2.66,1.35,1.68,2.06,2.34,2.52,2.58,1.48,1.76,2.15,2.38,2.60,2.66]'; X1=[3.10,3.51,4.04,4.47,4.72,5.01,3.06,3.46,3.99,4.424,4.677,4.92,2.896792326,3.302257434,3.833417869,4.263337972,4.516709294,4.743933941]'; X2=[6.115958,6.115958,6.115958,6.115958,6.115958,6.115958,6.388461,6.388461,6.388461,6.388461,6.388461,6.388461,6.807847,6.807847,6.807847,6.807847,6.807847,6.807847]'; X=[ones(18,1) X1 X2]; [b ,bint,r,rint,stats]=regress(Y,X) Y X1 X2 -7.64782 8.00000 -9.12175E-3 -7.54668 8.09691 -9.12175E-3 -7.34199 8.17609 -9.12175E-3 -7.05552 8.24304 -9.12175E-3 -7.03339 8.30103 -9.12175E-3 -6.87943 8.39794 -9.12175E-3 -6.72584 8.47712 -9.12175E-3 -6.70333 7.39794 -7.81115E-3 -6.31158 7.57403 -7.81115E-3 -6.07109 7.69897 -7.81115E-3 -5.92082 7.77815 -7.81115E-3 -5.66959 7.87506 -7.81115E-3 -5.55440 7.94201 -7.81115E-3 -5.44249 8.00000 -7.81115E-3 -6.15243 6.69897 -6.82985E-3 -5.63264 6.87506 -6.82985E-3 -5.19791 7.00000 -6.82985E-3 -5.05849 7.09691 -6.82985E-3 -4.80410 7.17609 -6.82985E-3 -4.69680 7.22272 -6.82985E-3 -4.11919 7.39794 -6.82985E-3 ÄâºÏ·½³Ì Y=A+BX1+CX2 ÇóA,B,CµÄÖµ¡£ ÏßÐԻعé,regressÃüÁî: Y=[]; %21*1 x1=[] %21*1 x2=[] %21*1 X=[ones(21,1) x1 x2] %21*3 [b ,bint,r,rint,stats]=regress(Y,X) µÃbÏòÁ¿¸÷·ÖÁ¿¶ÔÓ¦ÓÚx=[1 x1 x2]¸÷·ÖÁ¿Ö®ÏµÊý |
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