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datianzi

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[½»Á÷] ¡¾ÇóÖú¡¿¼±ÎÊ: matlabÄâºÏÈçºÎ²é¿´ÄâºÏ±äÁ¿µÄÎó²î? ÒÑÓÐ2È˲ÎÓë

matlabÄâºÏÈçºÎ²é¿´ÄâºÏ±äÁ¿µÄÎó²î?

ÎҵIJ¿·Ö³ÌÐòÊÇÕâÑùµÄ:

options = optimset('Display','iter','TolFun',1e-3,'TolX',1e-3)

fun = inline( 'x(1)+x(2)*xdata.^(x(3))','x','xdata');

[x,resnorm]=lsqcurvefit(fun,x0,xdata,ydata,lb,ub,options)

ÔËÐгÌÐò×îºóÖ»¸ø³öx(1) x(2) x(3)µÄ×î¼ÑÖµ,ÇëÎÊÔõô²é¿´ÕâÈý¸ö±äÁ¿µÄÎó²î?
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» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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change0618

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

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datianzi(½ð±Ò+1):3ks 2010-06-03 17:03:41
adu886886(½ð±Ò+2):ллÌṩÒâ¼û 2010-06-04 15:06:47
you can input 'help lsqcurvefit' in command window.
then you will see the following:

    [X,RESNORM,RESIDUAL] = LSQCURVEFIT(FUN,X0,...) returns the value of
    residual, FUN(X,XDATA)-YDATA, at the solution X.
2Â¥2010-06-03 16:19:11
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

datianzi

½ð³æ (ÕýʽдÊÖ)

ÎҲ鿴ÁË,ËüÖ»ÊÇ·µ»ØÃ¿¸öxdataµÄÎó²î,µ«ÄâºÏ±äÁ¿µÄÎó²î¿´²»µ½
3Â¥2010-06-03 17:03:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

change0618

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

·½ÕÉ´óʦ

¡ï
datianzi(½ð±Ò+8):лл£¬µ«Õâ¸öº¯Êý²»ÊʺÏlsqcurvefit 2010-06-03 18:55:49
adu886886(½ð±Ò+1):ллÌṩÒâ¼û 2010-06-04 15:06:55
[X,RESNORM,RESIDUAL,EXITFLAG,OUTPUT,LAMBDA,JACOBIAN] =LSQCURVEFIT(FUN,X0,...)

CI = NLPARCI(BETA,RESID,'jacobian',J)
4Â¥2010-06-03 17:52:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lattice2009

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5Â¥2015-01-22 21:48:51
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