²é¿´: 1861  |  »Ø¸´: 6

ÖÜÒàÁ¼

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] ¸ø¶¨µÄÄâºÏ¹ØÏµ£¬Á½¸ö×Ô±äÁ¿£¬Ò»¸öÒò±äÁ¿£¬ÇóÄâºÏ²ÎÊý ÒÑÓÐ4È˲ÎÓë

¸ø¶¨ÄâºÏ¹ØÏµy=A*(1+x1^B)*x2^C;
y=0.028061224        0.029081633        0.043367347        0.019387755        0.022959184        0.035204082        0.018367347        0.020408163        0.023265306        0.032653061        0.018367347        0.02        0.023265306        0.029795918;
x1=0.30952381        0.595238095        0.917619048        0.30952381        0.595238095        0.917619048        0.26        0.6        0.82        0.9716        0.26        0.6        0.82        0.9716;
x2=0.85714286        0.85714286        0.85714286        0.57142857        0.57142857        0.57142857        0.76665188        0.76665188        0.76665188        0.76665188        0.48294529        0.48294529        0.48294529        0.48294529;
ÔõôÓÃmatlabÇóµÃÄâºÏ²ÎÊýA,B,C¡£
ÇóÖú´óÉñ
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

luoshengfeng

ľ³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÍÆ¼öʹÓÃmatlab
ÓÃ×îÓÅ»¯·½·¨fminsearchº¯Êý
[x, fval] = fminsearch(fun, x0, options)
fun ÊÇÄ¿±êº¯Êý±í´ïʽ»ò¾ä±ú
x0 Êdzõʼֵ£¨¾ØÕó£©
options ÊÇÇó½âµÄÏà¹ØÉèÖÃ

´Ëº¯ÊýµÄÄ¿µÄËÑѰ×îÓÅx0£¬Ê¹funµÄÖµ×îС

Èç¹û ²»¶®¿ÉÒÔ ¡·help fminsearch  ½âÊ͵÷dz£Ïêϸ£¬»¹ÓÐÀý×Ó
ÖªÐкÏÒ»
2Â¥2016-11-29 14:26:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

dingd

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÖÜÒàÁ¼: ½ð±Ò+30, ¡ï¡ï¡ïºÜÓаïÖú 2016-12-06 09:20:41
1stOptÊÔÊÔ£¬¸ü¼òµ¥·½±ã£º
CODE:
Variable y,x1,x2;
Function  y=A*(1+x1^B)*x2^C;
Data;
y=0.028061224,0.029081633,0.043367347,0.019387755,0.022959184,0.035204082,0.018367347,0.020408163,0.023265306,0.032653061,0.018367347,0.02,0.023265306,0.029795918;
x1=0.30952381,0.595238095,0.917619048,0.30952381,0.595238095,0.917619048,0.26,0.6,0.82,0.9716,0.26,0.6,0.82,0.9716;
x2=0.85714286,0.85714286,0.85714286,0.57142857,0.57142857,0.57142857,0.76665188,0.76665188,0.76665188,0.76665188,0.48294529,0.48294529,0.48294529,0.48294529;

¾ù·½²î(RMSE): 0.004069128982965
²Ð²îƽ·½ºÍ(SSE): 0.000231809349520081
Ïà¹ØÏµÊý(R): 0.833276197550069
Ïà¹ØÏµÊý֮ƽ·½(R^2): 0.694349221403502
ÐÞÕýRƽ·½(Adj. R^2): 0.602653987824553
È·¶¨ÏµÊý(DC): 0.673721028308102
¿¨·½ÏµÊý(Chi-Square): 0.00404437524476765
Fͳ¼Æ(F-Statistic): 15.948566646494

²ÎÊý        ×î¼Ñ¹ÀËã
----------        -------------
a        0.0237086216239202
b        3.79590016142849
c        0.495829916349325
3Â¥2016-11-29 15:29:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÔÂÖ»À¶

Ö÷¹ÜÇø³¤ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
1stoptÈí¼þ´úÂ룬¼°Æä¼ÆËã½á¹û£º
CODE:
Variable y,x1,x2;
Function y=A*(1+x1^B)*x2^C;
Data;
    0.0281    0.3095    0.8571
    0.0291    0.5952    0.8571
    0.0434    0.9176    0.8571
    0.0194    0.3095    0.5714
    0.0230    0.5952    0.5714
    0.0352    0.9176    0.5714
    0.0184    0.2600    0.7667
    0.0204    0.6000    0.7667
    0.0233    0.8200    0.7667
    0.0327    0.9716    0.7667
    0.0184    0.2600    0.4829
    0.0200    0.6000    0.4829
    0.0233    0.8200    0.4829
    0.0298    0.9716    0.4829

¾ù·½²î(RMSE): 0.00406984053597758
²Ð²îƽ·½ºÍ(SSE): 0.000231890427836007
Ïà¹ØÏµÊý(R): 0.833230458615099
Ïà¹ØÏµÊý֮ƽ·½(R^2): 0.694272997163928
¾ö¶¨ÏµÊý(DC): 0.673739389790885
¿¨·½ÏµÊý(Chi-Square): 0.00403540282175971
Fͳ¼Æ(F-Statistic): 27.2507036953955

²ÎÊý        ×î¼Ñ¹ÀËã
----------        -------------
a                  0.0237434840840098
b                  3.80678718783887
c                  0.496384288402587
MATLAB¡¢MSСÎÊÌâ¡¢ÆÕͨÎÊÌâÇë·¢ÌûÇóÖú£¡Ê±¼ä¾«Á¦ÓÐÏÞ£¬Ë¡²»½ÓÊÜÎÞ³¥Ë½ÐÅÇóÖú¡£
4Â¥2016-11-29 15:37:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zjc2016

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by ÔÂÖ»À¶ at 2016-11-29 15:37:38
1stoptÈí¼þ´úÂ룬¼°Æä¼ÆËã½á¹û£º

Variable y,x1,x2;
Function y=A*(1+x1^B)*x2^C;
Data;
    0.0281    0.3095    0.8571
    0.0291    0.5952    0.8571
    0.0434    0.9176    0.8571
    0.0194     ...

ÄãÕ⾫¶ÈÃ÷ÏÔ´ï²»µ½°É

·¢×ÔСľ³æAndroid¿Í»§¶Ë
5Â¥2016-11-29 16:19:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

СԲ¶Ü

Í­³æ (СÓÐÃûÆø)

6Â¥2016-12-03 23:17:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

СԲ¶Ü

Í­³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
6Â¥: Originally posted by СԲ¶Ü at 2016-12-03 23:17:52
ÓÃmatlab

µÄÇúÄâºÏ¹¤¾ßÏ䣬ÊäÈëÊý¾ÝºÍº¯Êý¾Í¿ÉÒÔÁË

·¢×ÔСľ³æIOS¿Í»§¶Ë
7Â¥2016-12-03 23:19:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ÖÜÒàÁ¼ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[»ù½ðÉêÇë] ͶƱ:  ÓжàÉÙÈËÊǽñÌì²éϵͳ֪µÀ½á¹ûµÄ£¿ +15 °®¿´ÊéµÄ¿ÉÀÖ 2026-08-26 17/850 2026-08-27 09:45 by xxniao123
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøT0PÎÄÕ£¬ÎÒ:8.O.55.1.O.54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 LIbGuocjEEYw 2026-08-26 4/200 2026-08-27 02:01 by Ie9AyIAvGbvs
[»ù½ðÉêÇë] ÎÒ²»Àí½â£¡ +15 Edward_pc 2026-08-26 23/1150 2026-08-26 20:34 by zzuzxg
[»ù½ðÉêÇë] 2026ÄêµÄ¹ú¼ÒÉç¿Æ»ù½ðÏîĿͨѶÆÀÉóµÄйæÔòÓëж¯Ïò¡¢ÐÂÌôÕ½ +7 process2012 2026-08-23 10/500 2026-08-26 19:23 by hmhminy
[»ù½ðÉêÇë] Ôõô²é°¡ +5 huang1991js 2026-08-26 5/250 2026-08-26 16:09 by Equinoxhua
[»ù½ðÉêÇë] 2026Äê8ÔÂ25ÈÕ¹ú×ÔÈ»·Å°ñǰͻȻÊÕµ½ÁÐÈëÆÀÉóר¼ÒÓʼþ£¬ÓйØÏµÂ𣿠+25 ľˮ˼¶¹ 2026-08-25 28/1400 2026-08-26 14:53 by draco1987
[»ù½ðÉêÇë] ÄÜ·ñÍ˳ö²ÎÓëµÄÃæÉÏÏîÄ¿½â³ýÏÞÏî +23 koalala 2026-08-24 26/1300 2026-08-26 14:29 by ±¦±´³æ×Ó
[»ù½ðÉêÇë] ÄÄλ¸ßÈËÖÐÁË£¬°Ñ²éѯµ½µÄ½ØÍ¼Ìù³öÀ´ÈÃÎÒ¿´¿´£¬ÈÃÎÒ³¤³¤¼ûʶ +4 yuleib84 2026-08-26 5/250 2026-08-26 13:40 by yuleib84
[»ù½ðÉêÇë] Ϊʲô¹ú×ÔÈ»²»ÄÜÖ±½Ó¹«²¼ +4 bjdxyxy 2026-08-26 4/200 2026-08-26 13:12 by qingmu1201
[»ù½ðÉêÇë] ÏîÄ¿ÐÅÏ¢ºÍ¾­·ÑÐÅÏ¢ÔÚϵͳÀï¶¼¿ÉÒÔ¿´µ½ÁË +6 wittyboy 2026-08-26 14/700 2026-08-26 10:55 by wittyboy
[»ù½ðÉêÇë] Ôõô¿´Çà»ùÖÐÁËûÓа¡ +4 Ò¶¾Å΢ 2026-08-26 4/200 2026-08-26 10:52 by xiacongxu
[Ö°³¡ÈËÉú] ѧÉúײ¼û¸¨µ¼Ô±ËÍÍâÂô£¬µÚ¶þÌìÈ«°à¶¼³ÁĬÁË +3 ¾¨ÓãÈÚ½ð_Õã½­_É 2026-08-22 3/150 2026-08-26 09:01 by zzuzxg
[»ù½ðÉêÇë] ÔÚ¼á±ù»¹¸Ç×ű±º£µÄʱºò£¬ÎÒ¿´µ½ÁËÅ­·ÅµÄ÷»¨¡£ (½ð±Ò+10) +6 ziyangfang 2026-08-25 9/450 2026-08-25 20:26 by huagongfeihu
[»ù½ðÉêÇë] Ã÷ÌìÓ¦¸Ã¿É²éÁË£¡£¿ +6 chengyan1220 2026-08-23 6/300 2026-08-25 19:45 by zfd97
[»ù½ðÉêÇë] ijЩ»ú¹¹£¬ÒÔЧÂʵÍΪÈÙ£¬ÒÔЧÂʵÍ×÷Ϊ´æÔڸР+9 yuleib84 2026-08-25 10/500 2026-08-25 17:14 by alexon
[»ù½ðÉêÇë] ÈËÆø²»ÐÐÁË +11 fansofjerry 2026-08-21 11/550 2026-08-25 11:04 by ¹Â¶ÀµÄÓ¢ÐÛ6
[½Ìʦ֮¼Ò] Ìø²ÛºóÔÚÑÐÏîÄ¿Ôõô°ì£¿ +5 ¼òµ¥»¯xn 2026-08-22 10/500 2026-08-23 12:38 by ¼òµ¥»¯xn
[»ù½ðÉêÇë] ʱ¼ä´ÁÓÖ±äÁË +13 wuchongjun 2026-08-20 19/950 2026-08-21 17:21 by ×Ïɼ´¼
[»ù½ðÉêÇë] Ó¦¸ÃÊÇÏÂÖÜÈý26ÈÕ¹«²¼Á˰ɣ¿ +4 ¹þ¹þ¸ò£¿ 2026-08-21 4/200 2026-08-21 10:58 by Vivilian
[»ù½ðÉêÇë] »ù½ð°¡»ù½ð +4 longfie172 2026-08-20 4/200 2026-08-21 08:58 by mark mao
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û