- 在线时间
- 23 小时
- 最后登录
- 2011-4-3
- 注册时间
- 2010-3-30
- 听众数
- 3
- 收听数
- 0
- 能力
- 0 分
- 体力
- 18 点
- 威望
- 0 点
- 阅读权限
- 20
- 积分
- 20
- 相册
- 0
- 日志
- 0
- 记录
- 0
- 帖子
- 29
- 主题
- 3
- 精华
- 0
- 分享
- 0
- 好友
- 0
升级   15.79% 该用户从未签到
- 自我介绍
- 对新事物永远热爱
 |
t=2.3263;4 G/ w2 [5 w$ g, C' K0 N
k=0.5244;% g6 Y y& l2 j" R. M1 L
R=0.15;1 Y$ C% m# S$ Y1 `, _: j! o
u=[0.1221,0.1786,0.1452,0.1054,0.1132]';3 y& ~5 a' x- u! ]; `: g
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];
( C& } b" M* JE=E/10000;
% N: y; l/ k: |) o% O- @5 ~c=0.0075;
1 c t3 s4 y' j9 i* }options = optimset('Algorithm','active-set'); % run active-set algorithm1 A. g- G e% q& E# q1 V. a
aeq=[1+c,1+c,1+c,1+c,1+c];
! h( ]* S8 c8 X- p2 Z1 ^beq=1;
/ u' e9 M+ n* T5 [0 llb=[0,0,0,0,0]';
3 |0 O4 Y6 k& D8 u5 @; Fub=[1,1,1,1,1]';
4 t, S9 d* U* V" Hx0=[0.02,0.03,0.05,0.11,0.12]';7 _$ C' L4 \6 U4 j9 t' @& L
[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); e+ O) a0 D) A4 a0 p l
& V; r- c1 U) B4 e7 I3 [; F
function f = myfun( x,t,E,u,c ) %目标函数3 O" c- L- U$ a7 q+ U9 U( j8 r# t
%UNTITLED3 Summary of this function goes here
3 h* }% j4 b' h# G% Detailed explanation goes here
) E5 L; L2 S' A$ Y! U2 o3 nf=t*sqrt(x'*E*x)-(u'-c)*x;$ D8 j5 D" B8 J5 H) h* h5 M
end
! k9 @% Y* o3 X, ?. _- K& g3 `/ v. R ~2 G
function [C,Ceq] = mycon( x,t,k,E,u,c,R ) %非线性约束5 f1 b1 o* N! j: K
%UNTITLED4 Summary of this function goes here
8 U# E; S8 d Z3 S1 W+ x2 j8 Z% Detailed explanation goes here
, {. ]2 d+ Q6 A: N1 n7 f( TC=t*k*sqrt(x'*E*x)/(t-k)-t*(u'-c)*x/(t-k)+t*R/(t-k);6 k. ?# t8 h. H/ D3 ^" U- u
Ceq=[];
( h+ g! }/ m( m5 }+ G! iend
3 i% ?4 n+ H6 T8 B& c4 r
$ c, `, G- ?' g' h7 B g3 K* v: M
运行结果:
" q: r% O4 C9 U; g e) G2 j- I: cSolver stopped prematurely.( L; T5 ?+ k, u' w6 k
fmincon stopped because it exceeded the function evaluation limit,
( f4 |0 Z5 B; P6 L- E6 ?/ soptions.MaxFunEvals = 500 (the default value).
3 ^: J6 |# L; s3 ~7 t
+ N& l, g; ?& [. W! Y; D) U3 Ox =
- W5 ~* M9 n. f1 h7 L- d -0.0175. X2 X% U! T" K; g5 o/ x
0.48752 [! G( v4 o# ?% O I1 s: ^2 z
-0.0175
2 [: D* y5 v# R% K/ \ 0.3074
0 \+ V' S3 ~6 _+ U+ c 0.2328
/ D! V# V9 f, o7 T1 l8 F# X9 \7 e/ Q; r5 D9 e
fval =3 F2 Q# f5 j1 O' n5 D# J
-0.0390
1 y% i1 U& T" F! c0 d$ d0 U* s! L
+ P8 J- w3 t" x7 l3 _exitflag =" [6 i' m* p2 u% z
0
Z3 h1 [0 {7 y1 R+ M3 e2 S" X p( l3 ^
output = $ I5 {$ V3 n: _) P3 A
iterations: 51
8 m8 G* |7 |# z, h funcCount: 505
; s9 d9 b- u7 w# z lssteplength: 0.1250
+ u5 @0 V3 W( E5 Z stepsize: 0.0812, @9 n) T" o! F
algorithm: 'medium-scale: SQP, Quasi-Newton, line-search'
/ J) t) W/ N8 T3 O9 `% c, b/ z! Q firstorderopt: 2.4732
) e. K- O$ x9 M3 h* ]1 S constrviolation: 0.0509
/ j& i- X- p- `% T message: [1x145 char], E4 F2 q" K+ r& B: p
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
|