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³ÌÐòÊÇÕâÑùµÄ function myparafit clear all clc warning off close all k0 = [0.0000000005 0.0000000005 0.0000000005]; % initial value lb = [0 0 0 0]; % ???? ub = [1 1 1 1]; % ???? x0 = [100 0 0 0 25]; yexp=[0 100 0 0 0 20 74.1 5 3.1 17.8 40 41.4 5 12.3 41.3 60 7.2 7.5 20.9 64.4 90 2.9 15 20.4 62]; % [k,fval,flag] = fmincon(@ObjFunc7Fmincon,k0,[],[],[],[],lb,ub,[],[],x0,yexp); k_fm= k; [k,resnorm,residual,exitflag,output,lambda,jacobian] = ... lsqnonlin(@ObjFunc7LNL,k0,lb,ub,[],x0,yexp); ci = nlparci(k,residual,jacobian); k_ls = k; k0 = k_fm; [k,resnorm,residual,exitflag,output,lambda,jacobian] = ... lsqnonlin(@ObjFunc7LNL,k0,lb,ub,[],x0,yexp); ci = nlparci(k,residual,jacobian); k_fmls = k; tspan=[0 20 40 60 90]; [t x] = ode45(@KineticEqs,tspan,x0,[],k_fmls); figure; plot(t,x(:,1),'*-',t,yexp(:,2),'o-'); figure; plot(t,x(:,2:4),'*-'); hold on plot(t,yexp(:,3:5),'o:'); figure hold on k_fmls; % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function f = ObjFunc7Fmincon(k,x0,yexp) tspan=[0 20 40 60 90]; [t x] = ode45(@KineticEqs,tspan,x0,[],k); y(:,2:5) = x(:,1:4); f =sum((y(:,2)-yexp(:,1)).^2)+sum((y(:,3)-yexp(:,2)).^2)+sum((y(:,4)-yexp(:,3)).^2)+sum((y(:,5)-yexp(:,4)).^2); %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function f = ObjFunc7LNL(k,x0,yexp) tspan=[0 20 40 60 90]; [t x] = ode45(@KineticEqs,tspan,x0,[],k); y(:,2) = x(:,1); y(:,3) = x(:,2); y(:,4) = x(:,3); y(:,5) = x(:,4); f1 = y(:,2) - yexp(:,2); f2 = y(:,3) - yexp(:,3); f3 = y(:,4) - yexp(:,4); f4 = y(:,5) - yexp(:,5); f = [f1; f2; f3; f4]; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function dxdt = KineticEqs(t,x,k) % global Alpha k_d W=25; m0=100; k_d=0.01; P=x(1); G=x(2); L=x(3); W=x(4); Alpha=x(5); dxdt1=-(k(1)+k(2)+k(3))*P.*Alpha; dxdt2=k(1)*P.*Alpha; dxdt3=k(2)*P.*Alpha; dxdt4=k(3)*P.*Alpha; dxdt5=-k_d*exp(-k_d*x(3)*(100/25)); dxdt=[dxdt1;dxdt2;dxdt3;dxdt4;dxdt5]; |
2Â¥2013-06-13 23:17:57
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3Â¥2013-06-14 16:11:20
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5Â¥2013-06-14 19:28:10
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6Â¥2013-06-14 22:18:41













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