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function k1k2k3
format long
clear all
clc
tspan = [0  30  50  80 140 170 200 230 260 290 320 360 400 460 520 580 600];
x0 = [9;0;0;0;0];
k0 = [1  1  1  1  1  1  1  1  1  1];   
lb = [0  0  0  0  0  0  0  0  0  0];
ub = [1  1  1  1  1  1  1  1  1  1];

data=[30         7.939        1.458    7.939        1.458     7.939      
      50         7.687        1.535    7.687        1.535     7.687
      80         7.289        1.602    7.289        1.602     7.289
      140        6.658        1.717    6.658        1.717     6.658
      170        6.531        1.722    6.531        1.722     6.531
      200        6.218        1.671    6.218        1.671     6.218
      230        5.979        1.620    5.979        1.620     5.979
      260        5.591        1.550    5.591        1.550     5.591
      290        5.414        1.488    5.414        1.488     5.414
      320        4.968        1.433    4.968        1.433     4.968
      360        4.692        1.350    4.692        1.350     4.692  
      400        4.438        1.319    4.438        1.319     4.438
      460        4.144        1.294    4.144        1.294     4.144
      520        4.041        1.294    4.041        1.294     4.041
      580        4.052        1.287    4.052        1.287     4.052     
      600        4.052        1.287    4.052        1.287     4.052];
yexp = data(:,2:6);

[k,resnorm,residual,exitflag,output,lambda,jacobian] =...
lsqnonlin(@ObjFunc,k0,lb,ub,[],tspan,x0,yexp);      
ci = nlparci(k,residual,jacobian);
fprintf('\n\nʹÓú¯Êýlsqnonlin()¹À¼ÆµÃµ½µÄ²ÎÊýֵΪ:\n')
fprintf('\tk1 = %.9f ¡À %.9f\n',ci(1,2)-k(1),k(1))
fprintf('\tk2 = %.9f ¡À %.9f\n',ci(1,2)-k(2),k(2))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(3),k(3))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(4),k(4))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(5),k(5))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(6),k(6))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(7),k(7))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(8),k(8))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(9),k(9))
fprintf('\tk3 = %.9f ¡À %.9f\n',ci(1,2)-k(10),k(10))
fprintf('  The sum of the squares is: %.9e\n\n',resnorm)

function f = ObjFunc(k,tspan,x0,yexp)           % Ä¿±êº¯Êý
[t, Xsim] = ode45(@KineticsEqs,tspan,x0,[],k);
Xsim1=Xsim(:,1);
Xsim2=Xsim(:,2);
Xsim3=Xsim(:,3);
Xsim4=Xsim(:,4);
Xsim5=Xsim(:,5);
% Xsim6=Xsim(:,6);
ysim(:,1) = Xsim1(2:end);
ysim(:,2) = Xsim2(2:end);
ysim(:,3) = Xsim3(2:end);
ysim(:,4) = Xsim4(2:end);
ysim(:,5) = Xsim5(2:end);
% ysim(:,6) = Xsim6(2:end);
size(ysim(:,1));
size(ysim(:,2));
size(ysim(:,3));
size(ysim(:,4));
size(ysim(:,5));
% size(ysim(:,6));
size(yexp(:,1));
size(yexp(:,2));
size(yexp(:,3));
size(yexp(:,4));
size(yexp(:,5));
% size(yexp(:,6));
f = [(ysim(:,1)-yexp(:,1)) (ysim(:,2)-yexp(:,2)) (ysim(:,3)-yexp(:,3)) (ysim(:,4)-yexp(:,4)) (ysim(:,5)-yexp(:,5))];

function dCdt = KineticsEqs(t,C,k)              % ODEÄ£ÐÍ·½³Ì
dCAdt = (k(1)+k(5)+k(6)+k(7))*C(1);
dCBdt = k(1)*C(1)-(k(2)+k(8)+k(9))*C(2);
dCCdt = k(5)*C(1)+k(2)*C(2)-(k(3)+k(10))*C(3);
dCDdt = k(6)*C(1)+k(9)*C(2)+k(3)*C(3)-k(4)*C(4);
dCEdt = k(7)*C(1)+k(8)*C(2)+k(10)*C(3)+k(4)*C(4);
dCdt = [dCAdt; dCBdt;dCCdt;dCDdt;dCEdt];
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