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vigaryang

ľ³æ (ÕýʽдÊÖ)

[½»Á÷] ¡¾ÇóÖú¡¿matlab¼ÆËã½á¹ûÇóÖú

ÀûÓü¸×éy-xÊý¾Ý£¬½øÐзÇÏßÐÔ×îСƽ·½ÄâºÏ(lsqcurvefit),ÔËÐкóµÃµ½½á¹ûÈçÏ£º
Optimization terminated: relative function value
changing by less than OPTIONS.TolFun.
>> x
x =
  161.8259
   -1.6753
    0.2164
>> resnorm
resnorm =
    1.2678
>>

ÇëÎÊ£º"Optimization terminated: relative function value
changing by less than OPTIONS.TolFun.¡°Õâ¾ä»°ÊÇʲôÒâ˼£¿

ÎÒÒÔǰû½Ó´¥¹ýmatlab£¬ËùÒÔÇóÖú¸÷λÅóÓÑ£¬Ð»Ð»¡£

[ Last edited by dongdong3881 on 2009-12-14 at 16:20 ]
»Ø¸´´ËÂ¥
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zjliu1265

ÖÁ×ðľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï
zeoliters(½ð±Ò+2,VIP+0):лл»ØÌû½»Á÷£¡ 7-19 18:07
vigaryang(½ð±Ò+1,VIP+0):thank you 7-20 20:07
Ìáʾ˵Ã÷TolFunȡֵ(»òȱʡֵ)½Ï´ó£¬Äã¿ÉÒÔÓÃÏÂÃæµÄ¸ñʽ¼õСËü

options = optimset('TolFun',1e-8);
x=lsqcurvefit(fun,x0,xdata,ydata,lb,ub,options);
2Â¥2009-07-18 16:32:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ljbnudt

ľ³æ (ÕýʽдÊÖ)

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mingdong(½ð±Ò+1,VIP+0):¸Ðл½»Á÷£¡ 12-15 19:15
maybe x0 is accurate enough, or you should decrease the tol value
3Â¥2009-12-15 18:39:30
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