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liwendream木蟲 (正式寫手)
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[求助]
方程 擬合
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方程是Y=a*X1+b*X2+c*X3 Y X1 X2 X3 98.38 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 92.82 2 600 1 100 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 83.56 2 600 1 100 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 72.69 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 78.7 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 71.99 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 93.29 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 87.5 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 81.02 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 82.18 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 98.38 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 99.77 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 94.44 4 600 1 100 4 800 1.2 100 4 1000 1.4 1 00 4 1200 1.5 100 4 1400 1.8 Y是應(yīng)變量 X1、X2、X3是三個自變量 a、b、c是三個參數(shù) 怎么擬合出來 |
金蟲 (知名作家)
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系數(shù)矩陣 x= [ 2., 800., 1.200] [ 2., 1000., 1.400] [ 2., 1200., 1.500] [ 2., 1400., 1.800] [ 2., 600., 1.] [ 2., 800., 1.200] [ 2., 1000., 1.400] [ 2., 1200., 1.500] [ 2., 1400., 1.800] [ 2., 600., 1.] [ 2., 800., 1.200] [ 2., 1000., 1.400] [ 2., 1200., 1.500] [ 2., 1400., 1.800] [ 3., 600., 1.] [ 3., 800., 1.200] [ 3., 1000., 1.400] [ 3., 1200., 1.500] [ 3., 1400., 1.800] [ 3., 600., 1.] [ 3., 800., 1.200] [ 3., 1000., 1.400] [ 3., 1200., 1.500] [ 3., 1400., 1.800] [ 3., 600., 1.] [ 3., 800., 1.200] [ 3., 1000., 1.400] [ 3., 1200., 1.500] [ 3., 1400., 1.800] [ 3., 600., 1.] [ 3., 800., 1.200] [ 3., 1000., 1.400] [ 3., 1200., 1.500] [ 3., 1400., 1.800] [ 3., 600., 1.] [ 3., 800., 1.200] [ 3., 1000., 1.400] [ 3., 1200., 1.500] [ 3., 1400., 1.800] [ 4., 600., 1.] [ 4., 800., 1.200] [ 4., 1000., 1.400] [ 4., 1200., 1.500] [ 4., 1400., 1.800] [ 4., 600., 1.] [ 4., 800., 1.200] [ 4., 1000., 1.400] [ 4., 1200., 1.500] [ 4., 1400., 1.800] [ 4., 600., 1.] [ 4., 800., 1.200] [ 4., 1000., 1.400] [ 4., 1200., 1.500] [ 4., 1400., 1.800] [ 4., 600., 1.] [ 4., 800., 1.200] [ 4., 1000., 1.400] [ 4., 1200., 1.500] [ 4., 1400., 1.800] [ 4., 600., 1.] [ 4., 800., 1.200] [ 4., 1000., 1.400] [ 4., 1200., 1.500] [ 4., 1400., 1.800] y 矩陣 y= [ 98.38] [ 100.] [ 100.] [ 100.] [ 92.82] [ 100.] [ 100.] [ 100.] [ 100.] [ 83.56] [ 100.] [ 100.] [ 100.] [ 100.] [ 72.69] [ 100.] [ 100.] [ 100.] [ 100.] [ 78.70] [ 100.] [ 100.] [ 100.] [ 100.] [ 71.99] [ 100.] [ 100.] [ 100.] [ 100.] [ 93.29] [ 100.] [ 100.] [ 100.] [ 100.] [ 87.50] [ 100.] [ 100.] [ 100.] [ 100.] [ 81.02] [ 100.] [ 100.] [ 100.] [ 100.] [ 82.18] [ 100.] [ 100.] [ 100.] [ 100.] [ 98.38] [ 100.] [ 100.] [ 100.] [ 100.] [ 99.77] [ 100.] [ 100.] [ 100.] [ 100.] [ 94.44] [ 100.] [ 100.] [ 100.] [ 100.] 擬合系數(shù) f=f=inv(x'*x)*x'*y f = 3.2975 -0.1262 154.0290 |

至尊木蟲 (職業(yè)作家)
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data dataone ; input y x1 x2 x3 ; cards; 98.38 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 92.82 2 600 1 100 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 83.56 2 600 1 100 2 800 1.2 100 2 1000 1.4 100 2 1200 1.5 100 2 1400 1.8 72.69 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 78.7 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 71.99 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 93.29 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 87.5 3 600 1 100 3 800 1.2 100 3 1000 1.4 100 3 1200 1.5 100 3 1400 1.8 81.02 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 82.18 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 98.38 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 99.77 4 600 1 100 4 800 1.2 100 4 1000 1.4 100 4 1200 1.5 100 4 1400 1.8 94.44 4 600 1 100 4 800 1.2 100 4 1000 1.4 1 00 4 1200 1.5 100 4 1400 1.8 ; proc reg data=dataone ; model y=x1 x2 x3; run; |
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