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Y  a b c
.4  1 3 4
.6  2 4 7
.9  3 9 3
1  4 3 3

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y=x1*(1+x2*a)*(1+x3*b)^-2*(1+x4*c)^1.5

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ÆäÖеÄx1~x4Ϊ´ýÇó֮ϵÊý

ÊÔÎÊ ÀûÓÃMATLABÖеÄoptimization ÖеÄfmincon Ä¿±ê·½³ÌʽÓëÌõ¼þ·½³Ìʽ¸ÃÈçºÎ׫д?
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kukoob

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xiegangmai(½ð±Ò+1): лл²ÎÓ룡 2011-10-07 08:26:23
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2Â¥2011-10-07 04:49:54
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opensees520

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³ôË®¹µ: ÇëʹÓá°ÒýÓûظ´¡±£¬·ñÔò¶Ô·½¿´²»µ½ÄãµÄ»Ø¸´~~ 2011-10-08 10:26:12
ÖxÖxÄúµÄ»Ø´ð!
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Åe‚€Àý:
Îҵķ½³Ìʽ-->y=x1*x2*x3
EVew-->y=c1+x1+x2+x3

ß@Ô“ÔõüNÞkÄØ?
3Â¥2011-10-07 23:47:02
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opensees520

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ÒýÓûØÌû:
2Â¥: Originally posted by kukoob at 2011-10-07 04:49:54:
ÓÃspss×ö°É£¡
»òÕßeview£¡

ÖxÖxÄúµÄ»Ø´ð!
µ«ÊÇÎҵķ½³Ìʽһ¶¨µÃžé‚S”µÏà³Ë£¬µ«ÊÇÎÒ¿´ÁËEVIEWáá
ËûµÄÐèÇóÈ«²¿¶¼ÊǾ€ÐԵķ½·¨

Åe‚€Àý:
Îҵķ½³Ìʽ-->y=x1*x2*x3
EVew-->y=c1+x1+x2+x3

ß@Ô“ÔõüNÞkÄØ?
4Â¥2011-10-09 22:44:34
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

dbb627

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xiegangmai(½ð±Ò+2): ллӦÖú£¡ 2011-10-14 20:38:39
Õâ¸ö²»ÊÇÓÃfmincon ¸ü¸Ð¾õËĸöδ֪Êý£¬ËÄ×éÊý¾Ý ¾ÍÊǽâ·ÇÏßÐÔ·½³Ì¶øÒÑ
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ÓÃnlinfit »òÕßfsolve¾ÍÄܽâÁË
The more you learn, the more you know, the more you know, and the more you forget. The more you forget, the less you know. So why bother to learn.
5Â¥2011-10-14 17:27:55
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

opensees520

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ÒýÓûØÌû:
5Â¥: Originally posted by dbb627 at 2011-10-14 17:27:55:
Õâ¸ö²»ÊÇÓÃfmincon ¸ü¸Ð¾õËĸöδ֪Êý£¬ËÄ×éÊý¾Ý ¾ÍÊǽâ·ÇÏßÐÔ·½³Ì¶øÒÑ
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ÓÃnlinfit »òÕßfsolve¾ÍÄܽâÁË

ÎÒÔÙÔ‡Ô‡¿´! ÖxÖxÄúŸáÐĵĴð¸²!
6Â¥2011-10-15 23:39:08
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

opensees520

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¡ï
spc08(½ð±Ò+1): ¸Ðл·ÖÏí½á¹û 2011-10-21 15:20:38
×îáá߀ÊÇÓÃfmincon×ö£¬½Y¹ûÈçÏÂ:

x1=        0.194861392899133
x2=        0.9824801076167294
x3=        -0.009200848819499804
x4=        -0.0035009123433279283

COV close to 0
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