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littlesujin至尊木蟲 (著名寫手)
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[求助]
求擬合,想根據(jù)這組數(shù)據(jù)得到一個(gè)表達(dá)式,高手進(jìn)。
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0.04 0.04 0.15 0.07 0.23 0.1 0.29 0.12 0.35 0.14 0.43 0.18 0.47 0.21 0.51 0.23 0.54 0.26 0.58 0.29 0.64 0.32 0.67 0.36 0.71 0.4 0.76 0.45 0.78 0.47 0.8 0.51 0.82 0.55 0.85 0.58 0.87 0.62 0.9 0.69 0.93 0.73 0.94 0.75 0.95 0.78 0.98 0.82 1 0.86 1.01 0.89 1.02 0.93 1.03 0.97 1.05 1.01 1.09 1.1 1.11 1.18 1.13 1.27 1.14 1.36 1.17 1.45 1.18 1.51 1.19 1.55 1.21 1.59 1.22 1.63 1.22 1.67 1.23 1.72 1.24 1.77 1.25 1.81 1.26 1.87 1.27 1.94 1.28 2 1.29 2.06 1.29 2.09 1.29 2.13 1.29 2.16 1.3 2.21 1.32 2.24 1.32 2.28 1.33 2.32 1.34 2.36 1.34 2.4 1.35 2.46 1.35 2.53 1.36 2.59 1.36 2.64 1.37 2.7 1.38 2.77 1.38 2.82 1.39 2.88 1.39 2.94 1.41 3.03 1.4 3.11 1.41 3.23 1.42 3.28 1.44 3.34 1.44 3.39 1.45 3.45 1.45 3.5 1.47 3.58 1.47 3.64 1.49 3.73 1.5 3.82 1.52 3.91 1.54 3.96 1.58 3.91 1.59 3.85 1.6 3.81 1.6 3.76 1.61 3.71 1.62 3.65 1.62 3.58 1.62 3.54 1.63 3.48 1.63 3.42 1.63 3.36 1.64 3.31 1.64 3.23 1.65 3.17 1.65 3.1 1.65 3.02 1.66 2.93 1.68 2.81 1.68 2.75 1.69 2.67 1.7 2.56 1.7 2.5 1.71 2.43 1.71 2.36 1.72 2.29 1.72 2.22 1.73 2.14 1.74 2.05 1.75 1.97 1.77 1.89 1.78 1.8 1.8 1.7 1.82 1.65 1.84 1.58 1.85 1.56 1.87 1.59 1.88 1.64 1.89 1.68 1.92 1.73 1.94 1.73 1.95 1.73 1.96 1.71 1.97 1.67 1.98 1.63 1.99 1.58 1.99 1.5 1.99 1.42 2.01 1.34 2.05 1.27 2.07 1.19 2.1 1.2 2.17 1.18 2.18 1.14 2.19 1.1 2.21 1.06 2.22 0.99 2.26 1.01 2.29 0.99 2.31 0.94 2.33 0.89 2.36 0.87 2.38 0.89 2.42 0.84 2.44 0.77 2.47 0.8 2.49 0.75 2.54 0.7 2.59 0.65 2.62 0.63 2.66 0.59 2.71 0.56 2.76 0.53 2.79 0.5 2.83 0.48 2.88 0.45 2.93 0.42 3.01 0.37 3.06 0.35 3.13 0.33 3.2 0.31 3.27 0.29 3.32 0.28 3.39 0.27 3.45 0.25 3.54 0.24 3.62 0.24 3.73 0.24 3.84 0.23 3.95 0.22 4.04 0.22 4.15 0.22 4.29 0.22 4.46 0.22 4.61 0.21 4.72 0.21 4.85 0.21 4.99 0.21 |

榮譽(yù)版主 (文壇精英)
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專家經(jīng)驗(yàn): +518 |
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目標(biāo)函數(shù): y=a1*exp(-(x-b1)^2/c1)+a2*exp(-(x-b2)^2/c2)+a3*exp(-(x-b3)^2/c3)+a4*exp(-(x-b4)^2/c4) 相關(guān)系數(shù)(R): 0.999999657775725 相關(guān)系數(shù)之平方(R^2): 0.999999315551567 決定系數(shù)(DC): 0.999999167324403 卡方系數(shù)(Chi-Square): 0.000354049103646105 F統(tǒng)計(jì)(F-Statistic): 252758094.266943 參數(shù) 最終估算 ---------- -------------- a1 = -0.0810828911565159 a2 = 0.00358409369885868 a3 = 0.000214172066401603 a4 = 0.042540422661218 c1 = 45.9846978895284 c2 = 8.8739694617636 c3 = 37.3832602564758 c4 = 25.0728835040123 b1 = 1.52274503952824 b2 = 1.37253852194641 b3 = 2.10414234356001 b4 = 1.85288564739749 ====== 輸出結(jié)果 ===== No. Observed y Calculated y 1 0.04 0.0217212450425956 2 0.07 0.0520238901450058 3 0.1 0.0822285753152458 4 0.12 0.102374207551564 5 0.14 0.122513489523414 6 0.18 0.162689907203513 7 0.21 0.192774346339627 8 0.23 0.212856391030291 9 0.26 0.242916404049762 10 0.29 0.272994459147638 11 0.32 0.303107494114154 12 0.36 0.343162257728475 13 0.4 0.383233523782029 14 0.45 0.433319884340783 15 0.47 0.453353607378199 16 0.51 0.493386872692332 17 0.55 0.533419687706069 18 0.58 0.563468081691519 19 0.62 0.60349980220801 20 0.69 0.673546586717397 21 0.73 0.713592435303325 22 0.75 0.733607513876302 23 0.78 0.763622491587574 24 0.82 0.803666827031443 25 0.86 0.843695893211767 26 0.89 0.87371028119922 27 0.93 0.91372457337444 28 0.97 0.95373877041651 29 1.01 0.993766881765442 30 1.1 1.08382199159351 31 1.18 1.16384900003003 32 1.27 1.2538756505156 33 1.36 1.3438888429625 34 1.45 1.43392789577149 35 1.51 1.49394074032047 36 1.55 1.53395349921273 37 1.59 1.57397876204709 38 1.63 1.61399126697477 39 1.67 1.65399126697477 40 1.72 1.70400368821697 41 1.77 1.75401602624221 42 1.81 1.79402828150934 43 1.87 1.85404045446759 44 1.94 1.92405254555657 45 2 1.98406455520632 46 2.06 2.0440764838373 47 2.09 2.0740764838373 48 2.13 2.1140764838373 49 2.16 2.1440764838373 50 2.21 2.19408833186044 51 2.24 2.22411178767942 52 2.28 2.26411178767942 53 2.32 2.30412339624962 54 2.36 2.34413492576078 55 2.4 2.38413492576078 56 2.46 2.44414637657645 57 2.53 2.51414637657645 58 2.59 2.57415774905077 59 2.64 2.62415774905077 60 2.7 2.68416904352848 61 2.77 2.75418026034494 62 2.82 2.80418026034494 63 2.88 2.86419139982613 64 2.94 2.92419139982613 65 3.03 3.01421344803984 66 3.11 3.09420246228867 67 3.23 3.21421344803984 68 3.28 3.26422435737761 69 3.34 3.32424594795814 70 3.39 3.37424594795814 71 3.45 3.43425662975026 72 3.5 3.48425662975026 73 3.58 3.56427776764189 74 3.64 3.62427776764189 75 3.73 3.71429860624007 76 3.82 3.80430891388063 77 3.91 3.89432930691666 78 3.96 3.94434940494731 79 3.91 3.89438872166933 80 3.85 3.83439836856765 81 3.81 3.79440794282928 82 3.76 3.74440794282928 83 3.71 3.69441744457614 84 3.65 3.63442687392086 85 3.58 3.56442687392086 86 3.54 3.52442687392086 87 3.48 3.46443623096684 88 3.42 3.40443623096684 89 3.36 3.34443623096684 90 3.31 3.29444551580816 91 3.23 3.21444551580816 92 3.17 3.15445472852966 93 3.1 3.08445472852966 94 3.02 3.00445472852966 95 2.93 2.91446386920687 96 2.81 2.79448193468405 97 2.75 2.73448193468405 98 2.67 2.65449085958856 99 2.56 2.54449971265784 100 2.5 2.48449971265784 101 2.43 2.41450849392083 102 2.36 2.34450849392083 103 2.29 2.2745172033971 104 2.22 2.2045172033971 105 2.14 2.12452584109687 106 2.05 2.03453440702096 107 1.97 1.9545429011608 108 1.89 1.87455967400627 109 1.8 1.78456795264758 110 1.7 1.68458429413548 111 1.65 1.63460034747704 112 1.58 1.56461611203456 113 1.56 1.54462388577809 114 1.59 1.57463921562796 115 1.64 1.6246467714786 116 1.68 1.66465425442638 117 1.73 1.71467626428177 118 1.73 1.71469056995276 119 1.73 1.71469761194383 120 1.71 1.69470457976007 121 1.67 1.65471147318007 122 1.63 1.61471829197239 123 1.58 1.56472503589551 124 1.5 1.48472503589551 125 1.42 1.40472503589551 126 1.34 1.32473829811755 127 1.27 1.25476391237729 128 1.19 1.17477625965191 129 1.2 1.1847941984035 130 1.18 1.16483328714179 131 1.14 1.12483854894614 132 1.1 1.08484372886641 133 1.06 1.04485384118777 134 0.99 0.974858772627297 135 1.01 0.994877655163424 136 0.99 0.974890916780253 137 0.94 0.924899320729962 138 0.89 0.874907369433379 139 0.87 0.854918765479399 140 0.89 0.874925903900713 141 0.84 0.82493905458402 142 0.77 0.754945055310565 143 0.8 0.784953321107653 144 0.75 0.734958332192801 145 0.7 0.684969063219831 146 0.65 0.634977138986766 147 0.63 0.614980661079915 148 0.59 0.574983757167554 149 0.56 0.544984959765669 150 0.53 0.514983066112341 151 0.5 0.484980381094706 152 0.48 0.464974922601682 153 0.45 0.4349649587965 154 0.42 0.404951338368355 155 0.37 0.354921460046302 156 0.35 0.334897409697395 157 0.33 0.314856289592568 158 0.31 0.294805873669891 159 0.29 0.274745438188334 160 0.28 0.264695701831831 161 0.27 0.254616218957363 162 0.25 0.234538320190698 163 0.24 0.224403134663377 164 0.24 0.224262854190403 165 0.24 0.224035657514147 166 0.23 0.213764001674117 167 0.22 0.203442012303517 168 0.22 0.203136481987684 169 0.22 0.202705186531744 170 0.22 0.202051353039181 171 0.22 0.201071540924905 172 0.21 0.190004559940119 173 0.21 0.189079485620081 174 0.21 0.187804712019789 175 0.21 0.186175776834783 |
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