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升级   87.37% TA的每日心情 | 无聊 2015-10-10 18:19 |
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签到天数: 24 天 [LV.4]偶尔看看III
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10体力
function parafit. C% |: C d% ^; i+ {4 L* H! c
% k1->k-1,k2->k1,k3->k2,k4->k3,k5->k4
' D' a1 \1 P8 I% k6->k6 k7->k7
3 j6 d* G, X V" g* T% dGlcdt = k-1*C(Fru)-(k1+k2)*C(Glc);
3 V2 c [( T% M5 h% dFrudt = k1*C(Glc)-(k-1+k3+k4)C(Fru);1 v2 g: b$ ?# m4 c) Q; }. d
% dFadt = k(2)*C(Glc)+k4*C(Fru)+(k6+k7)*C(Hmf);8 x( P; z8 _4 p
% dLadt = k(7)*C(Hmf);7 {& e/ t$ S6 B8 l* {1 z+ M
%dHmfdt = k(3)*C(Fru)-(k6+k7)*C(Hmf);
* X% b- f, B, N' f; _) n( Hclear all8 {( k h5 i! R# d$ u6 u
clc
' J* I5 S% L+ Y5 ?8 Q: qformat long2 t. h8 f8 L3 H4 c
% t/min Glc Fru Fa La HMF/ mol/L
M4 p0 Q$ s& M$ L Kinetics=[0 0.25 0 0 0 0 E1 {3 }/ A4 ^+ |4 x& w4 w
15 0.2319 0.01257 0.0048 0 2.50E-04
- F2 I# ^6 N; e H n) F 30 0.19345 0.027 0.00868 0 7.00E-04. g' `* K8 |; [
45 0.15105 0.06975 0.02473 0 0.0033
) w# d( K" R" Y) @0 u j7 n 60 0.13763 0.07397 0.02615 0 0.00428* j& @. a& P) m
90 0.08115 0.07877 0.07485 0 0.014057 N6 G/ }) \( e# S2 V
120 0.0656 0.07397 0.07885 0.00573 0.021430 U. J; \) Q- W1 g2 V9 _
180 0.04488 0.0682 0.07135 0.0091 0.036232 |; T1 E& O5 i8 T
240 0.03653 0.06488 0.08945 0.01828 0.05452( L) j3 n8 r. n. h- [! \) ~
300 0.02738 0.05448 0.09098 0.0227 0.0597
: Z; l! ? @4 F; w; n8 I 360 0.01855 0.04125 0.09363 0.0239 0.06495];2 |6 |4 D. L9 ^
k0 = [0.0000000005 0.0000000005 0.0000000005 0.00000000005 0.00005 0.0134 0.00564 0.00001 0.00001 0.00001]; % 参数初值! O9 N2 w, @0 f7 Y) B5 E
lb = [0 0 0 0 0 0 0 0 0 0]; % 参数下限
( Y# D: L0 K! gub = [1 1 1 1 1 1 1 1 1 1]; % 参数上限% Z4 x/ @$ d* _
x0 = [0.25 0 0 0 0];
$ d6 Q ?* Y3 M+ e6 l9 V) ?8 Wyexp = Kinetics; % yexp: 实验数据[x1 x4 x5 x6]
& ] N' W2 B8 ]7 u% N* ]% warning off
( N! D/ v+ F# E! s% 使用函数 ()进行参数估计7 S K& t; E1 S- D: W+ ~$ u: n
[k,fval,flag] = fmincon(@ObjFunc7Fmincon,k0,[],[],[],[],lb,ub,[],[],x0,yexp); x0 P5 E/ b9 _+ C8 V: C
fprintf('\n使用函数fmincon()估计得到的参数值为:\n'), w! ?, J5 Q+ ~ J% U' n o
fprintf('\tk1 = %.11f\n',k(1)). S' L, \$ u8 D8 o
fprintf('\tk2 = %.11f\n',k(2))
) V+ e U N: \3 P4 ?. T1 sfprintf('\tk3 = %.11f\n',k(3))3 V/ X# Z6 B( |
fprintf('\tk4 = %.11f\n',k(4))9 M3 r- S h6 F- Z& V
fprintf('\tk5 = %.11f\n',k(5))! B# F( _& P) Y" h; y
fprintf('\tk6 = %.11f\n',k(6))
8 X2 q3 q8 |7 m. L& G0 Ffprintf('\tk7 = %.11f\n',k(7))) e& d* d( e5 H6 _
fprintf('\tk8 = %.11f\n',k(8))0 r/ R- ~3 I7 L& v+ f8 X( |
fprintf('\tk9 = %.11f\n',k(9))
0 D* {- ?2 o# s1 t' _fprintf('\tk10 = %.11f\n',k(10))
$ \" A' j; d5 ]( W9 x' l, v: }fprintf(' The sum of the squares is: %.1e\n\n',fval)9 ]' m5 D7 T. q, K/ D. u* V3 R. U
k_fm= k;
, K8 k6 d# h* v; F- Y% warning off
, P- p1 B; ?5 \" s% 使用函数lsqnonlin()进行参数估计
- ]* q8 K! q9 S& d) \[k,resnorm,residual,exitflag,output,lambda,jacobian] = ...0 M$ q, l1 o% `, U! u% T
lsqnonlin(@ObjFunc7LNL,k0,lb,ub,[],x0,yexp);
3 `9 ^& ?3 {1 o1 @/ Wci = nlparci(k,residual,jacobian);+ T( w& P8 M# A$ n* ]7 n
fprintf('\n\n使用函数lsqnonlin()估计得到的参数值为:\n')/ B. B$ B1 m$ m7 V- w, k0 c
fprintf('\tk1 = %.11f\n',k(1)). h( S Y& N! D ?# e# S
fprintf('\tk2 = %.11f\n',k(2))
% R/ E2 X# g) B( n! Lfprintf('\tk3 = %.11f\n',k(3))
1 l9 U' Q. T: M7 ]2 R( {fprintf('\tk4 = %.11f\n',k(4))/ T$ A- H; E$ z0 T
fprintf('\tk5 = %.11f\n',k(5))
9 T. B0 b( ?4 @. x* Ffprintf('\tk6 = %.11f\n',k(6))0 \: o; q# w; i9 g9 `* T* ~
fprintf('\tk7 = %.11f\n',k(7))
4 ^$ Z, N* {3 q- q' n, W8 [fprintf('\tk8 = %.11f\n',k(8))
8 ]7 `& F1 X: jfprintf('\tk9 = %.11f\n',k(9))
9 p% N6 L: [! D5 ]9 s& e9 s' M: M6 @- Dfprintf('\tk10 = %.11f\n',k(10))
( e, W/ y" q& v- g* wfprintf(' The sum of the squares is: %.1e\n\n',resnorm)1 q G b* R3 s7 v8 {
k_ls = k;
# ?! E$ z/ f2 j$ ?& Ooutput2 Y& s1 F: t+ S% ?; K8 J4 G7 ^
warning off
- ?! ^% ~) F4 o# E& U) O5 X% 以函数fmincon()估计得到的结果为初值,使用函数lsqnonlin()进行参数估计: o% D4 Y7 s0 O# C+ C3 ~8 F* ], D6 W2 J
k0 = k_fm;
8 `1 ~* d6 m, F2 S9 L& L; A[k,resnorm,residual,exitflag,output,lambda,jacobian] = ...
% i' ]: M! `" Z* q7 q1 T lsqnonlin(@ObjFunc7LNL,k0,lb,ub,[],x0,yexp); # Q8 W; _$ a+ H
ci = nlparci(k,residual,jacobian);$ S+ L# D9 |+ a+ A& s& P
fprintf('\n\n以fmincon()的结果为初值,使用函数lsqnonlin()估计得到的参数值为:\n')
7 v; U1 H! i. K4 w' }7 B% O1 Tfprintf('\tk1 = %.11f\n',k(1))9 T8 `3 j* |1 f1 v# Q% G
fprintf('\tk2 = %.11f\n',k(2))
5 K3 s: ]; {/ J- Dfprintf('\tk3 = %.11f\n',k(3))
# e* {( J' U4 |. ]fprintf('\tk4 = %.11f\n',k(4))
3 k) x# F' X, K% s' ^fprintf('\tk5 = %.11f\n',k(5))
" H' U" q* i6 X! b" S% d( ~! i2 v7 hfprintf('\tk6 = %.11f\n',k(6))
) k h( U# U( f& W( k5 V& }fprintf('\tk7 = %.11f\n',k(7))
; b G4 T$ L' X) Y" ]/ F5 n0 Ufprintf('\tk8 = %.11f\n',k(8))
$ {0 i4 T) a2 X& w! e5 n/ [4 Efprintf('\tk9 = %.11f\n',k(9))
* M2 T, L) d7 r. c9 ?, C1 K7 yfprintf('\tk10 = %.11f\n',k(10))3 N+ k, x6 i% I. l, m& }2 U
fprintf(' The sum of the squares is: %.1e\n\n',resnorm)
, N: C4 j. r& k9 |+ D; S0 W- |k_fmls = k;
) h9 A3 w: d# loutput/ `% E* ~, x: R, h( F; Q# b- }
tspan = [0 15 30 45 60 90 120 180 240 300 360]; Z- S- C( s! X' M
[t x] = ode45(@KineticEqs,tspan,x0,[],k_fmls);
, A' y0 V6 \) x) {4 U& m- ufigure;
6 ]2 c. i, @ w* t( bplot(t,x(:,1),t,yexp(:,2),'*');legend('Glc-pr','Glc-real')
+ d$ R' M' K& U0 m- a xfigure;plot(t,x(:,2:5));% \0 u. x: I* {8 @# l
p=x(:,1:5)
3 t( e3 j" b" L7 i! Vhold on. `: Z( G% N4 P/ [% _& U2 ?
plot(t,yexp(:,3:6),'o');legend('Fru-pr','Fa-pr','La-pr','HMF-pr','Fru-real','Fa-real','La-real','HMF-real')9 ] Q( Z6 ^* V% Y# G
( B+ b; C' \- i$ n' f
9 m, m/ ]4 U% T; `$ A" ] c% G- N' n E, Z
function f = ObjFunc7LNL(k,x0,yexp)% \4 f& N# f8 B" x
tspan = [0 15 30 45 60 90 120 180 240 300 360];+ M; T; Z7 E( S. T
[t, x] = ode45(@KineticEqs,tspan,x0,[],k);
' U$ z) t1 [2 M! ?; P# u1 zy(:,2) = x(:,1);& \. t, i: a# D& @
y(:,3:6) = x(:,2:5);
; v i: A( l: N% ^9 j" @0 Uf1 = y(:,2) - yexp(:,2);
- [) I" u& h7 W! W( Af2 = y(:,3) - yexp(:,3);
( |9 _3 I# ]9 F. g- ^f3 = y(:,4) - yexp(:,4);
2 d( T3 k \: Zf4 = y(:,5) - yexp(:,5);* f9 M0 `3 b9 p. k6 e$ k+ v
f5 = y(:,6) - yexp(:,6);
3 m% N4 e7 ^+ g6 d& Ef = [f1; f2; f3; f4; f5];
. Q% C8 E6 _, F* j& p! o9 ` ^& U: \4 R
& n1 F2 r' f% s
" y8 |* }8 M* T1 yfunction f = ObjFunc7Fmincon(k,x0,yexp)1 K" k$ ]% o6 v
tspan = [0 15 30 45 60 90 120 180 240 300 360];
8 c% V) N2 O+ ]! P1 ][t x] = ode45(@KineticEqs,tspan,x0,[],k);
! D/ d) l( T0 d! X0 } ~y(:,2) = x(:,1);
L& `! f1 O' G' l" ~- t/ K# L4 |y(:,3:6) = x(:,2:5);
% ]) P1 g" v+ K0 c9 K4 o; o1 Yf = sum((y(:,2)-yexp(:,2)).^2) + sum((y(:,3)-yexp(:,3)).^2) ...% j7 {; G# W& x4 q: ?
+ sum((y(:,4)-yexp(:,4)).^2) + sum((y(:,5)-yexp(:,5)).^2) ..." F; _1 T% t: P* E1 @
+ sum((y(:,6)-yexp(:,6)).^2) ;
9 ?8 g& d( x8 R! U6 t J0 D" D
" S9 Q$ m" Z6 H5 }; c6 A3 T. I% E2 A9 @8 f* g; K, ?$ z
* Y* n; P' v9 {4 h( a2 D4 n, V; @0 P$ H% y( a0 x
function dxdt = KineticEqs(t,x,k)3 q6 l# H) j& u7 u* a
dGldt = k(1)*x(2)-(k(2)+k(3)+k(8))*x(1);
. Y+ O6 `, q/ p7 o1 ddFrdt = k(2)*x(1)-(k(1)+k(4)+k(5)+k(9))*x(2);: s" U% G% m* U
dFadt = k(3)*x(1)+k(5)*x(2)+(k(6)+k(7))*x(5);1 W& @& w" w* X# l2 N+ W9 }
dLadt = k(7)*x(5);7 r0 r% H" X' f/ V7 t# |5 r
dHmdt = k(4)*x(2)-(k(6)+k(7)+k(10))*x(5);
/ A# n, J: |0 L* |dxdt = [dGldt; dFrdt; dFadt; dLadt; dHmdt];8 k* B: L* M4 Z- [* E/ d- v
$ L; x/ r# q' x9 \' k9 k6 Z- R
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