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tao317594856金蟲 (小有名氣)
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[求助]
matlab多目標優(yōu)化問題,fgoalattain函數(shù),將取值范圍放的非常大,還出問題。 已有1人參與
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約束條件:%%條件中有反正切函數(shù)和二次開方,會與這個有關系嗎? function [g,ceq]=YSTJ3(x) g(1)=x(1)+x(2)-x(3)+100; g(2)=200-((3^(0.5))/2)*x(5)-(x(1)+2*x(2))/2+x(3)+((3^(0.5))/4)*x(4); g(3)=pi/6-atan((((3^(0.5))/2)*x(3))/(x(3)/2+x(1)+x(2))); g(4)=1110-2*(3^(0.5))*(x(1)+x(2)+x(3)); g(5)=1060-2*(3^(0.5))*(x(1)+x(2)+x(3))+(3*(x(1)+x(2))/4+(3^(0.5))/2)*(x(3)^2-((x(1)+x(2))^2)/4)^(0.5); g(6)=x(1)+x(2)+x(3)-410; g(7)=350+(3*(x(1)+x(2))/4+(3^(0.5))/2)*(x(3)^2-((x(1)+x(2))^2)/4)^(0.5)-(3^(0.5))*(x(1)+x(2)+x(3)); ceq=[]; 目標函數(shù): function f=MBHS3(x) f(1)=x(1); f(2)=x(2); f(3)=x(3); f(4)=x(4); f(5)=x(5); 執(zhí)行函數(shù): x0=[70,70,250,90,500]; goal=[70,70,250,90,500]; w=goal; lb=[0,0,0,0,0]; ub=[1000,1000,1000,1000,1000]; [xopt,fopt,c,d,e,f]=fgoalattain(@MBHS3,x0,goal,w,[],[],[],[],lb,ub,@YSTJ3) 運行結(jié)果: Solver stopped prematurely. fgoalattain stopped because it exceeded the function evaluation limit, options.MaxFunEvals = 600 (the default value). xopt = 11.7742 11.7742 304.3358 46.2874 587.4252 fopt = 11.7742 11.7742 304.3358 46.2874 587.4252 c = 1.8150e+04 d = 0 e = iterations: 29 funcCount: 607 lssteplength: 0.2500 stepsize: 1.3897e+03 algorithm: 'goal attainment SQP, Quasi-Newton, line_search' firstorderopt: [] constrviolation: 4.2032e+03 message: [1x146 char] f = lower: [5x1 double] upper: [5x1 double] eqlin: [0x1 double] eqnonlin: [0x1 double] ineqlin: [0x1 double] ineqnonlin: [7x1 double] 求大神指教,小蟲感激不盡 |
金蟲 (小有名氣)
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