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wodemiss鐵蟲 (小有名氣)
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[求助]
一階微分方程求解,并優(yōu)化參數(shù)值
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緊急求助,非常感謝。! 我有一系列y-t值,如何計算dy/dt=a*y*(b-y)/(c*d+d*y+e*(b-y)+y*(b-y)). 或者說我已知a,b,c,d,e的值如何根據(jù)時間t的變化求出Y的值,然后依據(jù)求得的y-t值來擬合y-t值求得最佳的參數(shù)值a,c,d,e。 十分感謝,現(xiàn)在對這個相當困惑。希望大家指導(dǎo)一下。 |

鐵桿木蟲 (職業(yè)作家)
鐵蟲 (小有名氣)

新蟲 (小有名氣)
鐵蟲 (小有名氣)

鐵蟲 (小有名氣)

鐵蟲 (小有名氣)
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你好,你能幫我跑一下程序嗎?非常感謝。! 方程dy/dt = V*y*(2-y)/(Kia*Kmb+Kmb*y+Kma*(2-y)+y*(2-y)) 數(shù)據(jù)1: 0 0.129421222 0.167 0.127813505 0.333 0.126366559 0.5 0.124758842 0.667 0.123633441 0.833 0.122508039 1 0.121061093 1.167 0.119614148 1.333 0.118649518 1.5 0.117363344 1.667 0.116237942 1.833 0.114951768 2 0.113826367 2.167 0.112861736 2.333 0.111897106 2.5 0.110771704 2.667 0.109485531 2.833 0.1085209 3 0.10755627 3.167 0.106430868 3.333 0.10562701 3.5 0.104501608 3.667 0.103697749 3.833 0.102572347 4 0.101768489 4.167 0.100803859 4.333 0.1 4.5 0.098874598 4.667 0.09807074 4.833 0.097106109 5 0.096463023 5.167 0.095659164 5.333 0.094533762 5.5 0.093729904 5.667 0.092926045 5.833 0.092122186 6 0.091318328 6.167 0.090514469 6.333 0.089710611 6.5 0.089067524 6.667 0.088263666 6.833 0.087459807 7 0.086655949 7.167 0.086012862 7.333 0.085209003 7.5 0.084405145 7.667 0.083762058 7.833 0.082958199 8 0.082154341 8.167 0.081511254 8.333 0.080868167 8.5 0.080064309 8.667 0.079421222 8.833 0.078617363 9 0.078135048 9.167 0.077491961 9.333 0.076848875 9.5 0.076045016 9.667 0.075401929 9.833 0.074758842 10 0.074115756 10.167 0.073472669 10.333 0.072829582 10.5 0.072347267 10.667 0.07170418 10.833 0.071061093 11 0.070418006 11.167 0.06977492 11.333 0.069292605 11.5 0.068649518 11.667 0.068167203 11.833 0.067524116 12 0.066881029 12.167 0.066398714 12.333 0.065916399 12.5 0.065273312 12.667 0.064630225 12.833 0.06414791 13 0.063665595 13.167 0.06318328 13.333 0.062540193 13.5 0.062057878 13.667 0.061575563 13.833 0.061093248 14 0.060610932 14.167 0.059967846 14.333 0.059485531 14.5 0.059003215 14.667 0.0585209 14.833 0.058199357 15 0.05755627 15.167 0.057073955 15.333 0.056752412 15.5 0.056109325 15.667 0.055787781 15.833 0.055144695 16 0.054823151 16.167 0.054501608 16.333 0.053858521 16.5 0.053376206 16.667 0.053054662 16.833 0.052572347 17 0.052090032 17.167 0.051768489 17.333 0.051286174 17.5 0.050803859 17.667 0.050482315 17.833 0.05 18 0.049678457 18.167 0.049196141 18.333 0.048874598 18.5 0.048392283 18.667 0.04807074 18.833 0.047749196 19 0.047427653 19.167 0.046945338 19.333 0.046463023 19.5 0.046141479 19.667 0.045819936 19.833 0.045498392 20 0.045176849 20.167 0.044694534 20.333 0.04437299 20.5 0.044051447 20.667 0.043729904 20.833 0.04340836 21 0.042926045 21.167 0.042765273 21.333 0.04244373 21.5 0.041961415 21.667 0.041800643 21.833 0.041318328 22 0.040996785 22.167 0.040836013 22.333 0.040514469 22.5 0.040192926 22.667 0.039871383 22.833 0.039549839 23 0.039228296 23.167 0.038906752 23.333 0.038745981 23.5 0.038424437 23.667 0.038102894 23.833 0.03778135 24 0.037459807 24.167 0.037299035 24.333 0.036977492 24.5 0.036655949 24.667 0.036495177 24.833 0.036173633 25 0.03585209 25.167 0.035691318 25.333 0.035530547 25.5 0.035209003 25.667 0.035048232 25.833 0.03488746 26 0.034565916 26.167 0.034565916 26.333 0.034083601 26.5 0.034083601 26.667 0.033762058 26.833 0.033440514 27 0.033279743 27.167 0.033118971 27.333 0.032797428 27.5 0.032636656 27.667 0.032315113 27.833 0.032154341 28 0.031993569 28.167 0.031672026 28.333 0.031672026 28.5 0.031350482 28.667 0.031189711 28.833 0.030868167 29 0.030707395 29.167 0.030546624 29.333 0.03022508 29.5 0.03022508 29.667 0.029903537 29.833 0.029742765 30 0.029581994 30.167 0.02926045 30.333 0.029099678 30.5 0.029099678 30.667 0.028778135 30.833 0.028778135 31 0.028456592 31.167 0.02829582 31.333 0.028135048 31.5 0.027974277 31.667 0.027813505 31.833 0.027491961 32 0.027491961 32.167 0.02733119 32.333 0.027170418 32.5 0.027009646 32.667 0.026848875 32.833 0.026688103 33 0.026527331 33.167 0.026366559 33.333 0.026366559 33.5 0.026045016 33.667 0.025884244 33.833 0.025723473 34 0.025723473 34.167 0.025401929 34.333 0.025241158 34.5 0.025241158 34.667 0.025080386 34.833 0.024919614 35 0.024919614 35.167 0.024758842 35.333 0.024598071 35.5 0.024437299 35.667 0.024276527 35.833 0.024115756 36 0.024115756 36.167 0.023954984 36.333 0.023794212 36.5 0.023633441 36.667 0.023633441 36.833 0.023472669 37 0.023311897 37.167 0.023151125 37.333 0.023151125 37.5 0.022990354 37.667 0.022829582 37.833 0.02266881 38 0.02266881 38.167 0.022508039 38.333 0.022508039 38.5 0.022347267 38.667 0.022186495 38.833 0.022186495 39 0.022025723 39.167 0.021864952 39.333 0.021864952 39.5 0.021543408 39.667 0.021382637 39.833 0.021382637 40 0.021382637 數(shù)據(jù)2 0 0.065755627 0.167 0.064469453 0.333 0.062861736 0.5 0.061414791 0.667 0.059967846 0.833 0.058681672 1 0.057395498 1.167 0.056270096 1.333 0.054983923 1.5 0.054019293 1.667 0.052733119 1.833 0.051607717 2 0.050482315 2.167 0.049678457 2.333 0.048553055 2.5 0.047588424 2.667 0.046623794 2.833 0.045659164 3 0.044694534 3.167 0.043890675 3.333 0.042926045 3.5 0.042122186 3.667 0.041157556 3.833 0.040353698 4 0.039549839 4.167 0.038745981 4.333 0.037942122 4.5 0.037299035 4.667 0.036495177 4.833 0.035691318 5 0.03488746 5.167 0.034244373 5.333 0.033601286 5.5 0.032958199 5.667 0.032315113 5.833 0.031511254 6 0.031028939 6.167 0.030385852 6.333 0.029742765 6.5 0.02926045 6.667 0.028617363 6.833 0.027974277 7 0.027491961 7.167 0.027009646 7.333 0.026527331 7.5 0.025884244 7.667 0.025401929 7.833 0.024919614 8 0.024437299 8.167 0.023794212 8.333 0.023472669 8.5 0.022990354 8.667 0.022508039 8.833 0.022025723 9 0.021543408 9.167 0.021221865 9.333 0.020900322 9.5 0.020418006 9.667 0.020096463 9.833 0.01977492 10 0.019292605 10.167 0.018971061 10.333 0.018649518 10.5 0.018327974 10.667 0.017845659 10.833 0.017684887 11 0.017363344 11.167 0.017041801 11.333 0.016720257 11.5 0.016398714 11.667 0.01607717 11.833 0.015916399 12 0.015594855 12.167 0.015434084 12.333 0.01511254 12.5 0.014790997 12.667 0.014630225 12.833 0.014308682 13 0.01414791 13.167 0.013987138 13.333 0.013665595 13.5 0.013504823 13.667 0.01318328 13.833 0.013022508 14 0.012861736 14.167 0.012861736 14.333 0.012540193 14.5 0.012379421 14.667 0.01221865 14.833 0.011897106 15 0.011736334 15.167 0.011575563 15.333 0.011414791 15.5 0.011414791 15.667 0.011254019 15.833 0.011093248 16 0.010932476 16.167 0.010771704 16.333 0.010771704 16.5 0.010450161 16.667 0.010450161 16.833 0.010289389 17 0.010289389 17.167 0.010128617 17.333 0.009967846 17.5 0.009967846 17.667 0.009807074 17.833 0.009807074 18 0.009646302 18.167 0.009485531 18.333 0.009485531 18.5 0.009485531 18.667 0.009324759 18.833 0.009163987 19 0.009163987 19.167 0.009163987 19.333 0.009003215 19.5 0.008842444 19.667 0.008842444 19.833 0.008842444 20 0.008842444 20.167 0.0085209 20.333 0.008681672 20.5 0.008681672 20.667 0.0085209 20.833 0.0085209 21 0.0085209 21.167 0.008360129 21.333 0.008360129 21.5 0.008360129 21.667 0.008199357 21.833 0.008199357 22 0.008199357 22.167 0.008038585 22.333 0.008199357 22.5 0.008038585 22.667 0.008038585 22.833 0.008038585 23 0.008038585 23.167 0.008038585 23.333 0.007877814 23.5 0.007877814 23.667 0.007717042 23.833 0.007877814 24 0.007877814 24.167 0.007877814 24.333 0.007877814 24.5 0.007717042 24.667 0.007717042 24.833 0.007717042 25 0.007717042 25.167 0.007717042 25.333 0.007717042 25.5 0.007717042 25.667 0.007717042 25.833 0.007717042 26 0.00755627 26.167 0.00755627 26.333 0.00755627 26.5 0.00755627 26.667 0.00755627 26.833 0.00755627 27 0.00755627 27.167 0.00755627 27.333 0.00755627 27.5 0.00755627 27.667 0.00755627 27.833 0.00755627 28 0.00755627 28.167 0.00755627 28.333 0.00755627 28.5 0.00755627 28.667 0.00755627 28.833 0.00755627 29 0.00755627 29.167 0.00755627 29.333 0.00755627 29.5 0.00755627 29.667 0.00755627 29.833 0.00755627 30 0.00755627 |

鐵蟲 (小有名氣)

鐵蟲 (小有名氣)

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