±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 863  |  »Ø¸´: 6
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

tt02331

Í­³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾ÇóÖú¡¿Çë½Ì×îС¶þ³Ë·¨Çó½â£¡

·½³ÌʽΪ£ºy=a*x^b, ͨ¹ýʵÑéµÃµ½5×éx¡¢y£¬ÔõôÀûÓÃ×îС¶þ³Ë·¨Çó³öa¡¢bµÄÖµ£¿Çë¸÷λ¸ßÊÖÖ¸µãÃÔ½ò£¡

[ Last edited by zzgyb on 2008-7-2 at 15:00 ]
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

gwdavid

ľ³æ (ÖøÃûдÊÖ)

Сľ³æÉ¢±ø¿Ó¿Ó³¤

¡ï ¡ï
csfn(½ð±Ò+2,VIP+0):3q
×îС¶þ³Ë¶àÏîʽÄâºÏº¯ÊýΪpolyfit()
µ÷ÓøñʽÈçÏÂ
p=polyfit(x,y,n)
¸öÈ˲©¿Í£º[url]http://blog.sina.com.cn/gaiwei[/url]
5Â¥2008-07-02 15:56:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð

gwdavid

ľ³æ (ÖøÃûдÊÖ)

Сľ³æÉ¢±ø¿Ó¿Ó³¤

¡ï ¡ï ¡ï
csfn(½ð±Ò+3,VIP+0):3q
×îС¶þ³Ë·¨ÊÇÇúÏßÄâºÏµÄ»ù±¾·½·¨£º
1.¿ÉÒÔÓÃͳ¼ÆÈí¼þSAS£¬ÓÃËûµÄnlin¹ý³Ì£¬ÊäÈëÄ£ÐÍy=a*x^b£¬¾ßÌå¹ý³ÌΪ£º
   proc nlin;
       parms a=0 b=0;
       model y=a*x^b;
   run;
   SAS¿ÉÒÔ¸øÄã¹À¼Æ³öa bµÄÖµ
2.¿ÉÒÔÓÃmatlabÖеÄÏà¹ØÓï¾ä
¸öÈ˲©¿Í£º[url]http://blog.sina.com.cn/gaiwei[/url]
2Â¥2008-07-01 21:00:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ó©»ð³æ8876

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

ºÜ¸ßÐË£¬ÄúÄÜÌá³öÕâÑùÓÐÌÖÂÛ¼ÛÖµµÄÎÊÌ⣬ÎÒûÓÐȨÏÞ¸øÄãÆÀ·Ö£¬µ«ÊÇÎÒÖ§³ÖÄúµÄÌû×Ó£¡
3Â¥2008-07-02 00:25:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tt02331

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by gwdavid at 2008-7-1 21:00:
×îС¶þ³Ë·¨ÊÇÇúÏßÄâºÏµÄ»ù±¾·½·¨£º
1.¿ÉÒÔÓÃͳ¼ÆÈí¼þSAS£¬ÓÃËûµÄnlin¹ý³Ì£¬ÊäÈëÄ£ÐÍy=a*x^b£¬¾ßÌå¹ý³ÌΪ£º
   proc nlin;
       parms a=0 b=0;
       model y=a*x^b;
   run;
   SAS¿ÉÒÔ¸øÄã¹À¼Æ³öa bµÄ ...

ÎÒûÓÐSASÈí¼þ£¬¿É²»¿ÉÒÔÏêϸ˵˵ÈçºÎÓÃmatlabÇó½âÄØ£¿
4Â¥2008-07-02 09:26:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 288Çóµ÷¼Á +7 ûÓдð°¸_ 2026-04-05 7/350 2026-04-05 17:01 by yulian1987
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +12 ºôºô£¿~+123456 2026-04-05 12/600 2026-04-05 14:15 by shanshui11
[¿¼ÑÐ] 083200 333Çóµ÷¼Á +3 Ê®¶þ£¡£¡ 2026-04-04 3/150 2026-04-05 08:28 by barlinike
[¿¼ÑÐ] ¿¼Ñе÷¼Á +11 СsunÒªºÃÔË 2026-04-04 11/550 2026-04-05 08:02 by qlm5820
[¿¼ÑÐ] µ÷¼Á +11 JLLLLLLLLLL 2026-04-03 11/550 2026-04-04 22:21 by hemengdong
[¿¼ÑÐ] 280Çóµ÷¼Á +21 ¹¾ààÏþÏþ 2026-04-02 22/1100 2026-04-04 11:12 by Öí»á·É
[¿¼ÑÐ] ¿¼ÑÐÇóµ÷¼Á +3 ľÐÄÏë¼ÌÐøÉîÔì 2026-04-03 3/150 2026-04-03 21:56 by à£à£à£0119
[¿¼ÑÐ] ±¾¿Æ985£¬×¨Òµ0812·Ö336Çóµ÷¼Á +4 ĪĪºÜÐÐ 2026-04-03 4/200 2026-04-03 21:31 by zhq0425
[¿¼ÑÐ] 303Çóµ÷¼Á +9 DLkz1314. 2026-03-30 9/450 2026-04-03 18:34 by lsÁõ˧
[¿¼ÑÐ] 303Çóµ÷¼Á +10 DLkz1314. 2026-03-30 10/500 2026-04-03 18:03 by Jimmyandyou
[¿¼ÑÐ] ²ÄÁÏר˶322·Ö +13 ¹þ¹þ¹þºðºðºð¹þ 2026-04-01 13/650 2026-04-03 16:08 by ŶŶ123
[¿¼ÑÐ] Çóµ÷¼Á +4 15064154688 2026-04-03 5/250 2026-04-03 15:07 by zrongyan
[¿¼ÑÐ] ¹¤¿Æ341·Öµ÷¼Á +3 Âå¶àÂÞ 2026-04-03 3/150 2026-04-03 14:20 by 1753564080
[¿¼ÑÐ] Ò»Ö¾Ô¸´ó¹¤Ñ§Ë¶£¬Çóµ÷¼Á +4 yub0811 2026-04-02 4/200 2026-04-02 21:36 by °ÙÁéͯ888
[¿¼ÑÐ] 298ÇóBÇøµ÷¼Á +4 zzz£¬£¬r 2026-04-02 5/250 2026-04-02 12:17 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] °²È«¹¤³Ì 285 Çóµ÷¼Á +3 Xinyu56 2026-04-01 4/200 2026-04-01 21:50 by ¾²¾²¾²¾²¾²¾²¾²¾
[¿¼ÑÐ] 310·ÖÇóµ÷¼Á +4 ³É¹¦Éϰ¶wang 2026-04-01 4/200 2026-04-01 20:35 by liu823948201
[¿¼ÑÐ] 349Çóµ÷¼Á +6 ³ÔµÄ²»ÉÙ 2026-04-01 6/300 2026-04-01 17:55 by JYD2011
[¿¼ÑÐ] 0855»úе³õÊÔ280Çóµ÷¼Á +3 kazenotori 2026-03-31 3/150 2026-04-01 10:08 by JourneyLucky
[¿¼ÑÐ] ¿¼Ñе÷¼ÁÇóÖú +7 13287130938 2026-03-31 7/350 2026-03-31 16:39 by 690616278
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û