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goodjackzj

гæ (СÓÐÃûÆø)

[ÇóÖú] matlabÖÐfminconµÄfunÊǾØÕóÔËËãÔõô°ì£¿ ÒÑÓÐ1È˲ÎÓë

ÏëÓÃÓÅ»¯Ëã·¨Çó½âÒ»¸ö¾ØÕóÔËËãʽ×ÓµÄ×îСֵ£¬ÉÏÍø¿´ÁËÓйØfminconµÄ×ÊÁÏ£¬·¢ÏÖfminconÖеÄfunʽ×ÓÒ»°ã¶¼ÊÇÄÜд³öx1£¬x2±í´ïʽµÄ£¬±ÈÈç
function y = fun1(x)
y = x(1)-0.25*x(2)+0.6;
Èç¹ûÎÒµÄfunÊÇÒ»¸ö¾ØÕóÔËËãÈ磺
min £¨h2-G2*phi2)'*W2*(h2-G2*phi2)
subject to: phi2>0
ÆäÖÐh2,G2,W2ÒÑÖª£¬phi2ÊÇÒ»¸ö3*1µÄÏòÁ¿£¬ÎÞ·¨Ð´³ö°üº¬phi2£¨i£©µÄ¾ßÌåʽ×Ó£¬ÇëÎÊÓ¦¸ÃÔõô°ì£¿
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СÃ×2011

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goodjackzj: ½ð±Ò+5 2014-01-10 18:24:54
xzhdty: ½ð±Ò+1, лл²ÎÓë 2014-01-10 19:52:33
¾ØÕóÔËËãÒ²¿ÉÒԵġ£fmincon¿ÉÒÔÇó scalar, vector, or matrixµÄ½â¡£¾ßÌå²Ù×÷ʱÎÞÐèд³É phi2(i)µÄÐÎʽ£¬¾Í½«phi2×÷Ϊһ¸övector¾ÍÐУº
function y = fun1(phi2)
y=£¨h2-G2*phi2)'*W2*(h2-G2*phi2);
2Â¥2014-01-02 02:37:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

goodjackzj

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by СÃ×2011 at 2014-01-02 02:37:28
¾ØÕóÔËËãÒ²¿ÉÒԵġ£fmincon¿ÉÒÔÇó scalar, vector, or matrixµÄ½â¡£¾ßÌå²Ù×÷ʱÎÞÐèд³É phi2(i)µÄÐÎʽ£¬¾Í½«phi2×÷Ϊһ¸övector¾ÍÐУº
function y = fun1(phi2)
y=£¨h2-G2*phi2)'*W2*(h2-G2*phi2);

ÇëÎÊÎÒÕâÑùд¶ÔÂð£¿
f = @(x)(h2-G2*x)'*W2*(h2-G2*x);
A = (-1)*eye(3);
B=[0,0,0]';
x0=[1,1,1]';
phi2=fmincon(f,x0,A,B);
³õʼµãx0Ëæ±ãÉèµÄ£¬ÎÒÏëÇóphi2µÄÈ«¾Ö×îСµã£¬ÇëÎÊÇëÓ¦¸ÃÔõô×öÄØ£¿
3Â¥2014-01-05 23:06:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

СÃ×2011

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by goodjackzj at 2014-01-05 16:06:06
ÇëÎÊÎÒÕâÑùд¶ÔÂð£¿
f = @(x)(h2-G2*x)'*W2*(h2-G2*x);
A = (-1)*eye(3);
B=';
x0=';
phi2=fmincon(f,x0,A,B);
³õʼµãx0Ëæ±ãÉèµÄ£¬ÎÒÏëÇóphi2µÄÈ«¾Ö×îСµã£¬ÇëÎÊÇëÓ¦¸ÃÔõô×öÄØ£¿...

¾Í´ÓÄãÕâЩÓï¾äÀ´¿´£¬ÎÒ¾õµÃÄãдµÄÊǶԵġ£
4Â¥2014-01-06 23:18:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

goodjackzj

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by СÃ×2011 at 2014-01-06 23:18:48
¾Í´ÓÄãÕâЩÓï¾äÀ´¿´£¬ÎÒ¾õµÃÄãдµÄÊǶԵġ£...

ÒѾ­½â¾öÁË£¬ÊÇÎÒÎÊÌâûÓÐÃèÊöÇå³þ¡£
function mf=min(phi2)
h2=[];   %ÄãÇó³öµÄÖµ
G2=[];   %ÄãÇó³öµÄÖµ
W2=[];   %ÄãÇó³öµÄÖµ
mf=(h2-G2*phi2)'*W2*(h2-G2*phi2);

end

fun=@min;
A=[];
b=[];
Aeq=[];
beq=[];
lb=[0 0 0];
ub=[];
nonlcon=[];
x0=phi2;   %³õʼֵ
options=optimset('Algorithm','interior-point');

[phi2_min,fval]=fmincon(fun,x0,A,b,Aeq,beq,lb,ub,nonlcon,options);
5Â¥2014-01-10 18:24:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

onlymindyou

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
5Â¥: Originally posted by goodjackzj at 2014-01-10 18:24:06
ÒѾ­½â¾öÁË£¬ÊÇÎÒÎÊÌâûÓÐÃèÊöÇå³þ¡£
function mf=min(phi2)
h2=[];   %ÄãÇó³öµÄÖµ
G2=[];   %ÄãÇó³öµÄÖµ
W2=[];   %ÄãÇó³öµÄÖµ
mf=(h2-G2*phi2)'*W2*(h2-G2*phi2);

end

fun=@min;
A=[];
b=[];
Aeq= ...

ÎÒÓöµ½µÄÒ²ÊDZäÁ¿ÊǾØÕó¡£ÇëÎÊÄúÕâ¸öÓÐfunctionµÄÊÇÖ±½ÓÕ³½øÈ¥ÔËÐÐô£¿ÎªÉ¶Îҵı¨´í°¡£¬Function definitions are not permitted in this context.
6Â¥2016-02-02 21:51:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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