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t=2.3263;
, t& S8 a! t0 A# {! \k=0.5244;# e8 l6 f4 Y- Q" {" E
R=0.15;
5 J8 C8 o( a1 V! x3 u- x- Q. Pu=[0.1221,0.1786,0.1452,0.1054,0.1132]';. c% S5 t& J3 K! `' _+ ~; l" C
E=[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];
+ X( D# ?8 ]3 IE=E/10000;
- ~* m* S$ Y! rc=0.0075;
1 q- g- C& t1 c) Noptions = optimset('Algorithm','active-set'); % run active-set algorithm
4 I7 F1 q# L1 J1 raeq=[1+c,1+c,1+c,1+c,1+c];+ `2 K( U; h8 `- u+ F9 C, _
beq=1;/ E" c2 a4 c* h3 c* Q: X- H
lb=[0,0,0,0,0]';1 f2 p- F6 h6 X1 R8 Q! t1 n4 b
ub=[1,1,1,1,1]';
/ O4 f1 H {' a5 q3 T7 Ox0=[0.02,0.03,0.05,0.11,0.12]';
" s: r# |+ A- h* y7 x# G# _[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)
" J" i) L1 y) Q, l# r0 o
$ Z q( F% K" f, zfunction f = myfun( x,t,E,u,c ) %目标函数' S m# d# ?4 x( k, A; z
%UNTITLED3 Summary of this function goes here# e- K5 _0 n q# f# b/ R( `8 O
% Detailed explanation goes here: X" @1 Q% I& U
f=t*sqrt(x'*E*x)-(u'-c)*x;
3 w# {2 ]: l" l5 [end6 x6 E D: Z$ p& z* G9 v
4 T {6 T+ C( S! j9 A4 mfunction [C,Ceq] = mycon( x,t,k,E,u,c,R ) %非线性约束
2 p# V7 ]% b* g E%UNTITLED4 Summary of this function goes here
* i0 K( Q) [8 [9 {3 B5 t% Detailed explanation goes here
9 L4 q+ ^. w! X4 CC=t*k*sqrt(x'*E*x)/(t-k)-t*(u'-c)*x/(t-k)+t*R/(t-k);0 \+ M! L' H6 P' T
Ceq=[];9 _( d2 n5 b2 Q7 M! y
end
- y5 ^: |1 p- v- M. O- W% h" b5 U6 s! ?4 [% ?/ H9 x* J+ t; T
0 g: y7 X, W6 \( O- C4 d/ Z; ]% w% v运行结果:
* @& C+ b# W/ N7 s! oSolver stopped prematurely.% v- |# i# F9 e0 I' f0 [, Y- `! M
fmincon stopped because it exceeded the function evaluation limit,0 t' y; Z; o, t3 ]8 S& a
options.MaxFunEvals = 500 (the default value).
1 L/ {1 i @% i6 i1 y/ m# \7 ~
' U" u: `' ]( Dx =
( \- W. b$ i+ P* G) @" y3 s -0.0175
! V. B& N# D* B$ Q- g 0.4875& W: R: z: j7 E* h% S6 u4 B
-0.0175
6 E+ e, {/ a( e; w6 E 0.3074
3 `% G7 s% {- Y* t' P" H/ C 0.2328
& |3 G' `' E' K; ^9 Q7 [! f- q. E' y$ ]. Y: j
fval =
* ~5 X2 ]6 b" o; `- V& c( w -0.0390
* h5 [& w; q! b* C2 H! t+ _' F5 c+ H) C# a) x7 D U+ D/ z {
exitflag =8 N2 B( [+ P. i
0: G$ P( a5 I3 @9 ^) V n* V
& h* a" r2 Q' B s, X* x }output = 8 s, W: M3 `0 E6 S
iterations: 51: u4 `% e$ K6 E" P! w* V3 `
funcCount: 505
: C; o, I% ]# s# t lssteplength: 0.1250# F" `7 A8 G; J) N; H
stepsize: 0.0812
1 q/ y5 T4 p' p/ ^7 { algorithm: 'medium-scale: SQP, Quasi-Newton, line-search', X4 G/ J) r o+ Y
firstorderopt: 2.4732
' c( U5 U4 @6 u9 R4 M2 z. ~ constrviolation: 0.0509
6 S6 Z1 d- c+ [4 E8 m& U2 s message: [1x145 char]
/ I0 S: T0 N! d ]0 @) R; f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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