- 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;& w5 W% U) m7 j$ h. c& G# s
k=0.5244;
% G7 T" l' }+ `/ \1 c; nR=0.15;
- d# R; A u& m' O) l! X" X& r% Ru=[0.1221,0.1786,0.1452,0.1054,0.1132]';
$ \8 k! N3 @8 z9 P& W5 ~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];
3 y; P5 e- C6 f) K: `E=E/10000;6 U0 G3 x7 h, C( J3 W7 V+ D
c=0.0075;+ ?) V; q: ^ A
options = optimset('Algorithm','active-set'); % run active-set algorithm/ M5 T P! D7 ^0 \* p: \
aeq=[1+c,1+c,1+c,1+c,1+c];
4 z- W+ q' `# W! h7 y0 g$ U1 Cbeq=1;
& W0 P" q" ^8 u, Y' Z5 p( `& Y/ }' nlb=[0,0,0,0,0]';8 w0 m- y4 V+ \6 C0 H) A# Q
ub=[1,1,1,1,1]';: h s% q6 x+ ^7 W$ i8 X& n1 Z
x0=[0.02,0.03,0.05,0.11,0.12]';
- `( Z3 _! J' c( ?[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)8 B7 w5 R3 i8 w( w# b7 `
! g! p2 \, N, A0 E
function f = myfun( x,t,E,u,c ) %目标函数' F& i+ {0 v3 I2 c7 c5 t3 d8 N
%UNTITLED3 Summary of this function goes here
6 W0 k8 w; M& O0 l' l: |/ [! d/ t" e% Detailed explanation goes here6 F7 L% S& T" J% n
f=t*sqrt(x'*E*x)-(u'-c)*x;0 Z5 b' ]: s2 H! W- |8 C
end
- ]( `& D4 `& E; h9 r7 @6 g1 }' ^/ u" l' |# [9 l2 u
function [C,Ceq] = mycon( x,t,k,E,u,c,R ) %非线性约束
" M4 A5 Y/ V+ w0 s4 ~3 w%UNTITLED4 Summary of this function goes here
- `2 ~ i7 r b9 `' z% Detailed explanation goes here6 y4 s8 S8 C4 O w$ s0 w
C=t*k*sqrt(x'*E*x)/(t-k)-t*(u'-c)*x/(t-k)+t*R/(t-k);: p% g C" J: H! Y
Ceq=[];. D7 `0 `0 b4 m6 @
end2 F+ Y. s0 w, L" ?" A Z1 B
# U* d8 ]$ Q' J
5 C ]1 \" Z: F1 N4 o+ p/ a) O" ^( ?运行结果:
% d& m5 e: k9 J! O( CSolver stopped prematurely.
! r- L% m4 R) e4 s+ B- l/ i! |fmincon stopped because it exceeded the function evaluation limit,
9 d( u8 V9 ?; A5 h; L' n7 M# l. yoptions.MaxFunEvals = 500 (the default value).
. _2 u& l7 F+ U" J1 |- O2 `
* `' @2 u/ f( d( ?( Sx =. J9 J. ~0 G! x! _, \! j( S2 \( |
-0.01751 {7 ]8 ~/ S( A# M. @( P8 z. k
0.4875; i& f, E& s" N2 Y
-0.0175% i. S+ Z: R u& U5 D& f- g9 L
0.3074
) U Z0 b9 n8 b0 i: T8 M( l 0.2328
: g- u+ l, n- N1 i% ]6 ?8 H0 L" v2 W2 T, s0 u; M8 G6 H3 w9 L
fval =# t. b, F( T2 V$ {; e5 j, b4 V
-0.0390, Y8 `" ]; C) z/ W
& z; ~8 b Q7 W4 @" }1 F0 ~5 x
exitflag =4 o5 P# S1 {, \: [
0: A! Q) M) y& }) H0 [0 J% |
/ R1 x8 y4 ]% T; }" k
output =
1 |6 N% O4 z& t9 i! Q iterations: 51- p- i {: m% Y* S; J1 h7 g( [
funcCount: 505
& J3 T& Y/ U$ q! [- s lssteplength: 0.1250$ M8 j" s- U( \; T! c2 K; u
stepsize: 0.0812
|+ i0 ]6 |4 S6 _9 Q5 a7 d) X algorithm: 'medium-scale: SQP, Quasi-Newton, line-search'
! x0 x! ~4 G" U8 d1 y- @ firstorderopt: 2.47326 E8 \) G) y1 l5 B
constrviolation: 0.0509
) F6 d3 x( f V/ G4 t7 M2 N message: [1x145 char]
! k% c$ Z2 z) `4 |) w3 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
|