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t=2.3263;) n0 ? S5 [: }
k=0.5244;7 U) v6 ~8 `! o5 J, g
R=0.15;
) ?" m* L& J: m0 N5 p! j& Y0 Vu=[0.1221,0.1786,0.1452,0.1054,0.1132]';
2 z. M" `/ T( R3 B' N( z" p* zE=[1234,864,-617,-246,987;864,642,586,-198,-815;-617,586,1433,469,-963;-246,-198,469,346,25;987,-815,-963,25,1827]; ^6 \. Y3 }9 y) d. \+ u1 |
E=E/10000;
& p9 Q8 }' K. V, E% R1 Jc=0.0075;4 p4 q5 B. x( b6 J6 H" r
options = optimset('Algorithm','active-set'); % run active-set algorithm3 g0 l- M4 e% E: L; f0 Q: N
aeq=[1+c,1+c,1+c,1+c,1+c];" J/ O# _' X: w5 ?, ~
beq=1;3 q6 G# Z5 h; t' T3 T( s5 z {
lb=[0,0,0,0,0]';
, p, ^. w, `- z' P6 {ub=[1,1,1,1,1]'; C% }: z$ \4 K" T$ L5 D Y/ I
x0=[0.02,0.03,0.05,0.11,0.12]';* z% m8 Q. o$ Z
[x,fval,exitflag,output] = fmincon(@(x) myfun( x,t,E,u,c),x0,[],[],aeq,beq,lb,ub,@(x) mycon( x,t,k,E,u,c,R),options)4 @ w. c# H6 D: i- ~
% l! o, s) l; J2 E8 }
function f = myfun( x,t,E,u,c ) %目标函数
4 C$ A' Z0 b4 j3 k; p/ ^%UNTITLED3 Summary of this function goes here- G7 y0 w x$ R: ~) o
% Detailed explanation goes here
& ?0 y4 c+ @3 \f=t*sqrt(x'*E*x)-(u'-c)*x;
1 P, ?3 X2 B$ D; [7 b2 G8 [end! }/ Z4 f7 ]$ i6 o
" A: Z) F8 f, V# W/ g. {7 }3 R' {function [C,Ceq] = mycon( x,t,k,E,u,c,R ) %非线性约束
* R- b' q9 Q5 p% [2 n1 Q: }%UNTITLED4 Summary of this function goes here8 G+ s1 @# a" D0 e" Q! L3 l! `& B
% Detailed explanation goes here
% `+ L" j! g/ B; v; O0 B8 s3 ~( U1 N5 ~C=t*k*sqrt(x'*E*x)/(t-k)-t*(u'-c)*x/(t-k)+t*R/(t-k);
0 {1 j; [( }, c) u3 x: W) s! kCeq=[];6 h- x0 K5 b% a; t) `+ ?5 F; S4 H
end3 z, B" u/ h+ V2 c2 g0 H8 Z
, P: g- J% [3 A0 D8 V ]0 a5 f, V, g1 B5 g
运行结果:
4 H4 F* h/ }# P0 SSolver stopped prematurely.) ~" t6 i6 X+ g
fmincon stopped because it exceeded the function evaluation limit,: G9 J2 ^ p, s# p- O ~
options.MaxFunEvals = 500 (the default value).
" C8 _# s' F% M0 y r) a9 s. r
+ K2 k9 R% |; G$ j+ D# ]x =
3 q- j- M$ f5 B* d( P5 c -0.0175
b8 g5 ]$ T1 D% d s 0.4875
0 R; u; P5 {/ O9 I7 l* W -0.0175
1 k& G6 a( g" n* L' q 0.3074
0 u2 h s4 W% `" @ v8 Z6 t 0.2328. t: J/ R5 h% m
* Q9 d" C: O/ Z# K# w6 m* \
fval =9 J' M3 K" a! b8 h7 T0 x3 S
-0.0390# [/ |& T. N& n2 d
1 C, {* p" a9 y. T4 @, @; [
exitflag =2 r6 U- }/ w4 k# h! U' i! q, ~
0
0 l" P/ ]. ~3 P7 h/ T5 x
$ V8 z3 l0 t# f4 [; K, x& Uoutput = " \! {. C) Y& j5 T1 k& Y: l
iterations: 51; `) [; Z% P( O- O* z
funcCount: 5054 s, n+ a5 G3 x1 w& F8 H y
lssteplength: 0.1250
8 I! K$ q7 ~* b& r i I# k stepsize: 0.0812, v1 ^- @2 D* \9 e: G( T& r+ c
algorithm: 'medium-scale: SQP, Quasi-Newton, line-search'
! z* @ O2 \/ U: Q firstorderopt: 2.47329 z# d" |# ^* E( o7 J" [; D
constrviolation: 0.0509
" k) ]) r+ z3 m2 Z message: [1x145 char]
/ }1 v) ]+ B" q) Q7 {9 o* V& o8 N各位大虾,程序如上所述,为什么函数提前就结束了,是不是要改默认参数设置,小弟也试过,但是捣鼓不出来,希望各位高人不吝赐教,小弟先拜谢了 Orz |
zan
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