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vs570588ľ³æ (ÕýʽдÊÖ)
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[ÇóÖú]
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[ÇóÖú] Çó¸ßÊÖ£¬ÄâºÏÇó²ÎÊý function M=Monod(c,Y) M= -c(1).*Y./(Y+c(2)) Y=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31 0]; x=[-0.78 -2.2268 -5.2033 -6.1377 -8.6137 -8.6428 -8.4792 -8.1692 -7.7128 -7.11 -6.3608 -1.9]; x=x/214.63; c0=[0.03 0.3];beta=nlinfit(Y,x ,¡¯Monod¡¯,c0); ΪÁ˲ÎÊýc(1),c(2)£¬Õâ¸öС³ÌÐò¿ì°ÑÎÒÕÛÄ¥ËÀÁË¡£ÏÖÔÚ³öÀ´NLINFIT did NOT converge. Returning results from last iteration. beta = 0.0271 -8.1892 °´µÀÀí£¬-8.1892²»ºÏÀí¡£³öÀ´µÄ²ÎÊýÓ¦¸ÃºÍÎÒÔ¤¹ÀµÄ²î²»¶à¡£´ó¼Ò¿´¿´£¬ÕâÊÇÔõÑù»ØÊ£¿ |
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ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 30 (СѧÉú)
- ½ð±Ò: 2529.5
- É¢½ð: 1796
- ºì»¨: 1
- Ìû×Ó: 1151
- ÔÚÏß: 500.1Сʱ
- ³æºÅ: 1219128
- ×¢²á: 2011-03-02
- ÐÔ±ð: GG
- רҵ: ÎÄÒÕÃÀѧ
¡ï
dubo(½ð±Ò+1): лл²ÎÓë 2011-05-30 19:02:30
dubo(½ð±Ò+1): лл²ÎÓë 2011-05-30 19:02:30
| ±íʾ¿´²»¶®£¬¶Ì³ÌÐòÓ¦¸ÃÂ߼ûÓÐÎÊÌ⣬ÊÇϸ½Ú³öÏÖ´íÎó¡£ |

2Â¥2011-05-28 17:52:47
ľ³æpursuer
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 1988.3
- É¢½ð: 3
- ºì»¨: 2
- Ìû×Ó: 457
- ÔÚÏß: 56.4Сʱ
- ³æºÅ: 1260049
- ×¢²á: 2011-04-09
- ÐÔ±ð: GG
- רҵ: µç»¯Ñ§

3Â¥2011-05-28 18:19:14
vs570588
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 3112.1
- É¢½ð: 456
- ºì»¨: 1
- Ìû×Ó: 923
- ÔÚÏß: 420.6Сʱ
- ³æºÅ: 822119
- ×¢²á: 2009-08-04
- ÐÔ±ð: GG
- רҵ: »·¾³¹¤³Ì
4Â¥2011-05-28 19:32:02
wmc_1979
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 1232.8
- É¢½ð: 30
- Ìû×Ó: 128
- ÔÚÏß: 110.9Сʱ
- ³æºÅ: 1243434
- ×¢²á: 2011-03-24
- רҵ: Ô˳ïѧ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
jjdg(½ð±Ò+1): ¸Ðл²ÎÓë 2011-05-30 04:22:31
jjdg(½ð±Ò+1): ¸Ðл²ÎÓë 2011-05-30 04:22:31
|
ÎÒ°ïÄãËãÁËһϠbeta = 0.0249 -14.4864 |
5Â¥2011-05-29 22:01:36
vs570588
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 3112.1
- É¢½ð: 456
- ºì»¨: 1
- Ìû×Ó: 923
- ÔÚÏß: 420.6Сʱ
- ³æºÅ: 822119
- ×¢²á: 2009-08-04
- ÐÔ±ð: GG
- רҵ: »·¾³¹¤³Ì
6Â¥2011-05-30 16:36:11
wmc_1979
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 1232.8
- É¢½ð: 30
- Ìû×Ó: 128
- ÔÚÏß: 110.9Сʱ
- ³æºÅ: 1243434
- ×¢²á: 2011-03-24
- רҵ: Ô˳ïѧ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï
dubo(½ð±Ò+1): лл²ÎÓë 2011-05-30 19:03:56
dubo(½ð±Ò+1): лл²ÎÓë 2011-05-30 19:03:56
|
ÄãÊÇÏ뽨Á¢yÊÇxµÄº¯Êý»¹ÊÇxÊÇyµÄº¯ÊýÄØ? |
7Â¥2011-05-30 18:27:48
dubo
½ð³æ (ÖøÃûдÊÖ)
- ³ÌÐòÇ¿Ìû: 4
- Ó¦Öú: 23 (СѧÉú)
- ¹ó±ö: 0.779
- ½ð±Ò: 569.2
- É¢½ð: 3220
- ºì»¨: 31
- ɳ·¢: 1
- Ìû×Ó: 1821
- ÔÚÏß: 349.5Сʱ
- ³æºÅ: 559371
- ×¢²á: 2008-05-17
- ÐÔ±ð: GG
- רҵ: ¸ß·Ö×Ó×é×°Ó볬·Ö×ӽṹ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï
ÓàÔó³É(½ð±Ò+2): лл²ÎÓëÓ¦Öú£¡ 2011-06-04 19:16:23
ÓàÔó³É(½ð±Ò+2): лл²ÎÓëÓ¦Öú£¡ 2011-06-04 19:16:23
|
ÓÃmatlabËãµÄ°É£¬ function M=Monod(c,Y) M= -c(1).*Y./(Y+c(2)) º¯Êý¶¨Òå²»¶Ô nlinfitº¯ÊýÔÚMatlabÖÐÊÇÈçºÎµ÷Óõģ¬Äã¿ÉÒԲμû http://zhidao.baidu.com/question/25633638 |
8Â¥2011-05-30 19:01:50
vs570588
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 3112.1
- É¢½ð: 456
- ºì»¨: 1
- Ìû×Ó: 923
- ÔÚÏß: 420.6Сʱ
- ³æºÅ: 822119
- ×¢²á: 2009-08-04
- ÐÔ±ð: GG
- רҵ: »·¾³¹¤³Ì
¡ï
dubo(½ð±Ò+1): лл²ÎÓë 2011-06-13 19:30:40
dubo(½ð±Ò+1): лл²ÎÓë 2011-06-13 19:30:40
|
%·ÇÏßÐÔÄâºÏŨ¶È±ä»¯¹ý³Ì t=[0 2 7 9 19 22 24 26 28 30 32 40];%ʱ¼ä²ÉÑùµã s=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31 0];%ÿʱ¿ÌŨ¶È¹Û²âÖµ x=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31];%ÕÒ³öŨ¶ÈµÄ³õʼֵ£¬·½³ÌÓұߵÄÖµ¾ÍÓÃËü i=1 length(t)-1);t1=t(i+1)-t(i);%Çót¼ä¸ô s1=s(i+1)-s(i);%Çós¼ä¸ô y=s1./t1; w=213.63;%ÎÛÄàŨ¶È y=y./213.63; %-------------------------------------------------------------------------- Monod=inline('-beta(1).*x./(x+beta(2))','beta','x'); c0=[0.03 0.3]; beta=nlinfit(x,y,Monod,c0); m=beta(1); n=beta(2); xx=min(x):max(x); yy=-m.*xx./(xx+n); plot(x,y,'o',xx,yy,'r') Õâ¸öÊDZðÈ˰ïÎÒдµÄ£¬¶Ô×Űɡ£µ«»¹ÊdzöÏÖNLINFIT did NOT converge. Returning results from last iteration¡£ÓÐЩÈË˵ÊÇÎÒÄâºÏÓõÄÊýѧ±í´ïʽ£¬²»Ó¦¸ÃÓÃË«ÇúÏߣ¬µ«ÊÇÎÒµÄÄ£ÐÍȷʵÊÇÕâÑù±í´ïʽ¡£ÄѵÀÊÇÎÒÔʼÊý¾Ý²»ºÃ¡£ |
9Â¥2011-05-30 19:13:36
dubo
½ð³æ (ÖøÃûдÊÖ)
- ³ÌÐòÇ¿Ìû: 4
- Ó¦Öú: 23 (СѧÉú)
- ¹ó±ö: 0.779
- ½ð±Ò: 569.2
- É¢½ð: 3220
- ºì»¨: 31
- ɳ·¢: 1
- Ìû×Ó: 1821
- ÔÚÏß: 349.5Сʱ
- ³æºÅ: 559371
- ×¢²á: 2008-05-17
- ÐÔ±ð: GG
- רҵ: ¸ß·Ö×Ó×é×°Ó볬·Ö×ӽṹ
¡¾´ð°¸¡¿Ó¦Öú»ØÌû
¡ï ¡ï ¡ï
ÓàÔó³É(½ð±Ò+3): лл²ÎÓëÓ¦Öú£¡ 2011-06-04 19:16:57
vs570588(½ð±Ò+2): ллÄãÁË 2011-06-05 20:53:54
vs570588(½ð±Ò+1): ÓÐÀÍÁË 2011-06-09 20:32:03
ÓàÔó³É(½ð±Ò+3): лл²ÎÓëÓ¦Öú£¡ 2011-06-04 19:16:57
vs570588(½ð±Ò+2): ллÄãÁË 2011-06-05 20:53:54
vs570588(½ð±Ò+1): ÓÐÀÍÁË 2011-06-09 20:32:03
|
Êý¾Ý2£º t=[0 2 7 9 19 22 24 26 28 30 32 40];%ʱ¼ä²ÉÑùµã s=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31 0];%ÿʱ¿ÌŨ¶È¹Û²âÖµ x=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31];%ÕÒ³öŨ¶ÈµÄ³õʼֵ£¬·½³ÌÓұߵÄÖµ¾ÍÓÃËü i=1 length(t)-1);t1=t(i+1)-t(i);%Çót¼ä¸ô s1=s(i+1)-s(i);%Çós¼ä¸ô y=s1./t1; w=213.63;%ÎÛÄàŨ¶È y=y./213.63; plot(x,y,'o'); Êý¾Ýµãû¹æÂÉ Êý¾Ý1£º y=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31 0]; x=[-0.78 -2.2268 -5.2033 -6.1377 -8.6137 -8.6428 -8.4792 -8.1692 -7.7128 -7.11 -6.3608 -1.9]; x=x/214.63; % t=[0 2 7 9 19 22 24 26 28 30 32 40];%ʱ¼ä²ÉÑùµã % s=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31 0];%ÿʱ¿ÌŨ¶È¹Û²âÖµ % x=[255.55 246.44 237.28 228.36 136.08 114 99.16 82.33 69.4 56.94 42.31];%ÕÒ³öŨ¶ÈµÄ³õʼֵ£¬·½³ÌÓұߵÄÖµ¾ÍÓÃËü % i=1 length(t)-1);% t1=t(i+1)-t(i);%Çót¼ä¸ô % s1=s(i+1)-s(i);%Çós¼ä¸ô % y=s1./t1; % w=213.63;%ÎÛÄàŨ¶È % y=y./213.63; plot(x,y,'o'); Êý¾ÝÏñb*(y-a)^2+c=x |
10Â¥2011-05-30 19:43:12














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