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xiaoqiia

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by NicoleLas at 2014-04-20 12:56:42
ÓÃ1stOpt¼ÆËãͦºÃµÄ£¬½á¹ûºÃÏñ²»Ö¹Ò»ÖÖ£º
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Title "Curve";
Parameters a,b,c,d;
Variable x,y;
Function y=18+a*(1-exp(-b*x))-c*log(1+d*x);
Data;
1     17.24
7     16.31
14    14. ...

ÊÇLN²»ÊÇLOG~
±¼ÅܰÉÉÙÄê
4Â¥2014-04-20 20:54:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 10 ¸ö»Ø´ð

qq2537742567

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¡ï ¡ï ¡ï ¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
xiaoqiia: ½ð±Ò+2, ÄÜÀ´¸ö¹ý³ÌÂð£¿Ð¡µÜ¸Õ½Ó´¥£¬²»´ó¶®~ 2014-04-20 10:02:55
fegg7502: ½ð±Ò+1, Ó¦ÖúÖ¸Êý+1, ¹ÄÀø½»Á÷ 2014-04-21 07:50:36
lsqcurvefitÄã²Î¿¼Õâ¸öº¯ÊýÀ´×ö
2Â¥2014-04-20 09:45:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

NicoleLas

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
xiaoqiia: ½ð±Ò+10, ÓÃÁËΪʲô²ÎÊý²»ÄÜÏÔʾdÄØ£¿Ö»ÓÐabc¸únon¡£¡£Çó´óÉñ¼ÌÐøÖ¸µ¼Ï 2014-04-20 20:53:33
fegg7502: ½ð±Ò+1, Ó¦ÖúÖ¸Êý+1, ¹ÄÀø½»Á÷ 2014-04-21 07:50:45
ÓÃ1stOpt¼ÆËãͦºÃµÄ£¬½á¹ûºÃÏñ²»Ö¹Ò»ÖÖ£º
´úÂëΪ£º
Title "Curve";
Parameters a,b,c,d;
Variable x,y;
Function y=18+a*(1-exp(-b*x))-c*log(1+d*x);
Data;
1     17.24
7     16.31
14    14.21
21    13.16
35    11.87
Be water, my friend.
3Â¥2014-04-20 12:56:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

NicoleLas

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
fegg7502: ½ð±Ò+1, ¹ÄÀø½»Á÷ 2014-04-21 07:50:53
fegg7502: Ó¦ÖúÖ¸Êý+1, ¹ÄÀø½»Á÷ 2014-04-21 07:51:03
±ÈÈçÕâÊÇÒ»×é½â¡£
"Curve"

µü´úÊý: 66
¼ÆËãÓÃʱ(ʱ:·Ö:Ãë:΢Ãë): 00:00:01:60
ÓÅ»¯Ëã·¨: ׼ţ¶Ù·¨(BFGS) + ͨÓÃÈ«¾ÖÓÅ»¯·¨
¼ÆËã½áÊøÔ­Òò: ´ïµ½ÊÕÁ²Åжϱê×¼
¾ù·½²î(RMSE): 0.0720037079046967
²Ð²îƽ·½ºÍ(SSE): 0.0259226697601244
Ïà¹ØÏµÊý(R): 0.999337253425239
Ïà¹ØÏµÊý֮ƽ·½(R^2): 0.9986749460835
¾ö¶¨ÏµÊý(DC): 0.998674945880788
¿¨·½ÏµÊý(Chi-Square): 0.000930938251442266
Fͳ¼Æ(F-Statistic): 2261.05881499843

²ÎÊý        ×î¼Ñ¹ÀËã
----------        -------------
a                  31.1225668620202
b                  1.96505984749032
c                  2.75886155053898
d                  21490.6088747969

====== ½á¹ûÊä³ö =====

No        ʵ²âÖµy        ¼ÆËãÖµy
1        17.24        17.2400202
2        16.31        16.2333504
3        14.21        14.3210955
4        13.16        13.2024765
5        11.87        11.7931817

²»ºÃÒâ˼£¬»»³ÉlnÁË£¬ÒÔǰÔÚʹÓÃÆäËüÈí¼þʱ£¬LOG¾ÍÊÇLN£¬¶øLGΪLOG10()¡£
ÎÒûÓÐ1stOptÕý°æµÄ£¬Äã×îºÃÇóÖúÒ»ÏÂdingd°æÖ÷¡£
Be water, my friend.
7Â¥2014-04-20 23:00:35
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