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t=2.3263;
. `) m) C z7 W4 b/ G7 N) x6 y9 \% Ck=0.5244;( g% S9 U7 X! }* l1 b" l3 _0 ]0 m Q
R=0.15;
. H# c% x% L+ F) m& ?u=[0.1221,0.1786,0.1452,0.1054,0.1132]';
" q$ w! v& K3 a9 i, mE=[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];
; P; O* c% v+ k- ME=E/10000;
# S' Y$ E- ~6 J* a& Xc=0.0075;
# x" y# O' J6 Q( \6 Zoptions = optimset('Algorithm','active-set'); % run active-set algorithm
4 `2 A) A$ V( O9 }, D8 H& x* Xaeq=[1+c,1+c,1+c,1+c,1+c];4 Y2 E- r0 h% c; l6 s
beq=1;6 w0 B: N$ N( t
lb=[0,0,0,0,0]';! M5 W) k# H) s& o* T4 U1 ?
ub=[1,1,1,1,1]';
6 S. R! n, r4 M9 @' Sx0=[0.02,0.03,0.05,0.11,0.12]';2 t4 ]4 o, Z. ` T
[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$ Q1 p- d) D0 O& D! ]9 F1 b. Y1 n+ } y7 v; o6 `9 W) `
function f = myfun( x,t,E,u,c ) %目标函数: m9 I1 O, l; z/ I) A7 }
%UNTITLED3 Summary of this function goes here
# t9 [6 I$ {8 D; u- O6 i' ^5 X% Detailed explanation goes here; z2 Z/ I; z- W( K5 Y9 }
f=t*sqrt(x'*E*x)-(u'-c)*x;0 X% @0 ~, M& _; I6 Y
end+ Z9 a: _2 S- l* [
9 q0 s( t, f( S2 G6 N
function [C,Ceq] = mycon( x,t,k,E,u,c,R ) %非线性约束6 v; z3 _+ y) G1 O) W. G( H
%UNTITLED4 Summary of this function goes here
+ j9 O8 H8 S$ r1 B: Q8 r% Detailed explanation goes here2 Y7 ^% i7 l1 x$ o
C=t*k*sqrt(x'*E*x)/(t-k)-t*(u'-c)*x/(t-k)+t*R/(t-k);5 D) g' A+ v6 j
Ceq=[];% N3 E# L- x$ K& t
end
& z7 x" H4 S) K- t' U2 E* E
' R0 g; D# e( r/ D
& T' W1 F$ a( Z! C( `运行结果:
& B& h7 B$ b- o0 M8 b* zSolver stopped prematurely.. W0 o$ \! c6 v& U2 Z* q" }# Q
fmincon stopped because it exceeded the function evaluation limit,
& _5 Z! @5 \2 a- j/ m* T8 Zoptions.MaxFunEvals = 500 (the default value).) q" H, f5 e: S% e$ H3 m' R6 D P
0 _ }& |( t' Z6 x# q, \x =* z' ?1 d& E6 I0 y* d- J' R3 V
-0.0175
% t5 j, q+ s$ h- Y" g 0.4875, q/ i2 u; p0 ? M6 ~) Z
-0.0175
! v$ P% D* L! g @3 R 0.3074
. n S* m& _+ R% ?, \: P+ N H* g 0.2328
+ N1 y5 [$ r- V- m1 H i7 w; n
: e: Q3 N* O, Tfval =2 v" p2 E4 ~: D( v. h* B
-0.0390, c+ Z# ^8 [) ?* Y' K. p
& {1 Q) G2 C7 T
exitflag =
% F( | e! o4 @ 07 O( F0 m) d& C; c: o' _
0 J( p+ r8 G* U6 \! Joutput = 9 ~+ j+ ^% H: d8 `1 @' U8 `
iterations: 51
9 L8 x* ^& Y E. ` C4 K' B r funcCount: 505& |; J* f' z- i9 S
lssteplength: 0.1250- F6 ~; ^. c: z# k
stepsize: 0.08129 m2 a4 w9 J* Z% Z& _0 Q
algorithm: 'medium-scale: SQP, Quasi-Newton, line-search'1 A$ g S- h! y
firstorderopt: 2.4732
2 y5 t$ O: \8 ?2 {% j, y- q constrviolation: 0.0509) _6 i& V3 e* j r8 b0 p
message: [1x145 char]
" U+ z' ~: i. \+ n) J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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