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apple880518

гæ (СÓÐÃûÆø)

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t        Ca
10        0.34
30        0.29
60        0.25
120        0.17
180        0.09
240        0.03
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ÒäÈç³Á

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¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
apple880518(xzhdty´ú·¢): ½ð±Ò+1, лл²ÎÓë 2013-06-02 19:58:16
¸øÄãÒ»¸öÁ´½Ó£¬ºÜºÃµÄÒ»¸öÄâºÏ
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%Éú³É´ý»Ø¹éÐźÅ-------------------------------
%Éú³É×ÜÐźÅ
clear;clc;
t = 1:10000;
factor_aci(1)=2.35;factor_aci(2) = 10;factor_aci(3) = 780e-6; factor_aci(4)=33;factor_aci(5) = 0;
data = myfun(factor_aci,t);
%ȡһ¶Î½øÐлعé
tt=2000:4000;
ydata = data(tt);
xdata = 1:length(ydata);
%------------------------------------------
%»Ø¹éϵÊýÏî
factor0 = [1,1,0.0001,1,500];
Lb =[0,0,0,0,500];
Ub =[5,30,0.01,50,4000];
[a,residual] = lsqcurvefit(@myfun,factor0,xdata,ydata,Lb ,Ub);
%²ÉÓûعéϵÊý¼ÆËã»Ø¹éÇúÏß
regression = myfun(a,xdata);
figure(1);
plot(regression,'b');
hold on;
plot(ydata,'r--');
legend('ÄâºÏ','ʵ²â');
ÄãÈô²»Àë²»Æú£¬ÎÒ±ãÉúËÀÏàÒÀ¡£
8Â¥2013-06-02 18:55:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 12 ¸ö»Ø´ð

apple880518

гæ (СÓÐÃûÆø)

ÓÃmatlabµÄ»°ÊDz»ÊÇÐèÒªÄâºÏ¹«Ê½µÄÐÎʽ£¿¹«Ê½ÎªCa=k1[1-exp(-k2t)]
2Â¥2013-05-31 16:17:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lauysche

½û³æ (ÖøÃûдÊÖ)

¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
jjdg: ±à¼­ÄÚÈÝ 2013-06-02 23:08
apple880518: ½ð±Ò+2 2013-08-27 09:28:51
±¾ÌûÄÚÈݱ»ÆÁ±Î

3Â¥2013-05-31 16:27:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

apple880518

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by lauysche at 2013-05-31 16:27:53
¿´Äã¶ÔÄĸö¸ü¼ÓÊìϤÁË£¬Õâ×éÊý¾Ý²»´í£¬ºÜÓйæÂÉÐÔ£¬²Â²âΪһԪ»Ø¹é£º
Y=a*X+b
²ÉÓÃ×îС¶þºÅ²ÅÄØ¹ý»Ø¹é£¬´úÂ룺
xx =

   10.0000    0.3400
   30.0000    0.2900
   60.0000    0.2500
  120.0000    0.17 ...

ÕâÊÇÏßÐԵİɣ¿ÎÒÏëÒªÇúÏߵģ¬ÒòΪÆäËûµÄÊý¾Ý¾ÍÊÇÇúÏßµÄ
Õâ×éÊý¾Ý
t               ca
0        0.0871
10        0.0402
20        0.0335
30        0.0315
40        0.0293
4Â¥2013-05-31 17:24:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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