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walk1997

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8Â¥: Originally posted by loopool5358 at 2013-06-22 08:58:22
ÁíÍ⣬ÐèҪ˵Ã÷µÄÊÇ£¬Õ⼸¸ö´ýÄâºÏ²ÎÊýµÄ¶¼ÓÐÎïÀíÒâÒ壬¾ÍÊǶ¼µÃ´óÓÚÁãÁË¡£

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11Â¥2013-06-22 10:35:34
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loopool5358

Òø³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
10Â¥: Originally posted by walk1997 at 2013-06-22 10:07:00
ÁíÍâ Äã¿´Ï µÚÁùÐеÄÊý¾Ý
ÕâÊý¾ÝºÜͻȻ±ä´ó ÂíÉÏÓÖϽµ...²»¾õµÃÆæ¹Öô
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2£©¼´Ê¹ÄâºÏ½á¹û²»ºÃ£¬ÄÜ·ñ°Ñ½á¹û¸æÖªÄÄ¡£
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12Â¥2013-06-22 11:10:33
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walk1997

½ð³æ (ÖøÃûдÊÖ)

ÓõÄmathematica ±È½Ï͵ÀÁ ½¨Òé¿´ÏÂÄâºÏ²ÎÊýÊDz»ÊÇ»¹ÓÐÆäËûÏÞÖÆ(±ÈÈçÊDz»ÊÇֻҪij¸ö¾Ö²¿×îСµÄÄâºÏ)
Clear["Global`*"];
SetDirectory[NotebookDirectory[]];
test = Import["IV.txt", "Data"];
f = 38.92;
S = 1;
re = NonlinearModelFit[SetAccuracy[test, 17],
   Imax*( 1 - Exp[-f*\[Eta]]) /(K1*Exp[-(1 - \[Alpha]) f*\[Eta]] +
       K2*Exp[-f*\[Eta]] + KM/S + 1), {Imax, K1, K2,
    KM, \[Alpha]}, {\[Eta]}, Method -> NMinimize];
re[{"ParameterTable"}]
re = NonlinearModelFit[
   SetAccuracy[test,
    17], {Imax*(
       1 - Exp[-f*\[Eta]]) /(K1*Exp[-(1 - \[Alpha]) f*\[Eta]] +
        K2*Exp[-f*\[Eta]] + KM/S + 1), Imax > 0, K1 > 0, K2 > 0,
    KM > 0, \[Alpha] > 0}, {Imax, K1, K2, KM, \[Alpha]}, {\[Eta]},
   Method -> NMinimize];
re[{"ParameterTable"}]
Print[Show[ListPlot[SetAccuracy[test, 17]],
   Plot[Normal[re], {\[Eta], 0, 0.35}]]];
test = Delete[test, {{5}, {6}, {7}}];
re = NonlinearModelFit[
   SetAccuracy[test,
    17], {Imax*(
       1 - Exp[-f*\[Eta]]) /(K1*Exp[-(1 - \[Alpha]) f*\[Eta]] +
        K2*Exp[-f*\[Eta]] + KM/S + 1), Imax > 0, K1 > 0, K2 > 0,
    KM > 0, \[Alpha] > 0}, {Imax, K1, K2, KM, \[Alpha]}, {\[Eta]},
   Method -> NMinimize];
re[{"ParameterTable"}]
Print[Show[ListPlot[SetAccuracy[test, 17]],
   Plot[Normal[re], {\[Eta], 0, 0.35}]]];
£­------------------------------------
½á¹û£¬Ô¼ÊøÔÚËùÓвÎÊý¶¼´óÓÚ0µÄÇé¿ö
        Estimate        Standard Error        t-Statistic        P-Value
Imax        2.99146        17.0319        0.175639        0.864466
K1        18.7077        3.02763        6.179        0.000162926
K2        0.        122.524        0.        1.
KM        1.1016*10^-6        5.6898        1.93611*10^-7        1.
\[Alpha]        0.153136        0.566881        0.270138        0.793146

£­-------------------------
È¥µô6£¬7µãµÄÄâºÏ
        Estimate        Standard Error        t-Statistic        P-Value
Imax        3.34359        0.590046        5.66666        0.00129905
K1        1.71615        1.76284        0.973518        0.367893
K2        22.5157        0.229166        98.2506        7.49176*10^-11
KM        0.107593        0.204174        0.526967        0.617122
\[Alpha]        0.579124        0.159921        3.62132        0.0110797
13Â¥2013-06-22 12:06:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

walk1997

½ð³æ (ÖøÃûдÊÖ)

btw: ÄãµÄԭʼÊý¾Ý
0.0008421052631579        0.0098314606741573
0.0538947368421053        0.5997191011235961
0.0842105263157895        1.3960674157303401
0.1204210526315790        2.1039325842696601
0.15410526315789499        2.70365168539326017
0.20042105263157900        3.0379213483146099
0.2526315789473680        2.8609550561797801
0.2686315789473680        2.9789325842696601
0.2863157894736840        2.9789325842696601
0.2981052631578950        2.9887640449438200
0.3149473684210530        2.9985955056179798
0.3351578947368420        2.9985955056179798
0.3553684210526320        2.9985955056179798
0.3747368421052630        2.9887640449438200

£­-------------
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14Â¥2013-06-22 12:09:21
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loopool5358

Òø³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
14Â¥: Originally posted by walk1997 at 2013-06-22 12:09:21
btw: ÄãµÄԭʼÊý¾Ý
0.0008421052631579        0.0098314606741573
0.0538947368421053        0.5997191011235961
0.0842105263157895        1.3960674157303401
0.1204210526315790        2.1039325842696601
0.15410526315789499        2.70 ...

·Ç³£¸ÐлÄú°¡
Ô­ÎÄÏ×˵µÄÊÇ£ºminimization was done using non-linear least squares estimation¡£minimization was performed using the quasi-Newton as implemented in Mathcad¡£
ÎÒµÄÀí½âÊÇ£¬²ÉÓ÷ÇÏßÐÔ×îС¶þ³Ë·¨»ñµÃ²ÎÊýÄâºÏ£¬ÔÚÄâºÏ¹ý³ÌÖвÉÓýüËÆÅ£¶Ù·½·¨¡£
²»¹ý£¬ÄúÁгöÀ´µÄÖµ£¬ºÍÎÄÏ×ÖеÄÖµÏà²î±È½Ï´ó¡£Ò²¿ÉÄÜÊÇ£¬ÎÒÊÇ´ÓÎÄÏ×ÖÐȡֵµÄ£¬ËùÒÔÓÐЩÎó²îÔÚÀïÃæµÄ¡£
ÎÒÒ²ÏÂÔØÄú˵µÄÈí¼þ¿´¿´¡£
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15Â¥2013-06-22 14:05:12
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icecream8508

½ð³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
14Â¥: Originally posted by walk1997 at 2013-06-22 12:09:21
btw: ÄãµÄԭʼÊý¾Ý
0.0008421052631579        0.0098314606741573
0.0538947368421053        0.5997191011235961
0.0842105263157895        1.3960674157303401
0.1204210526315790        2.1039325842696601
0.15410526315789499        2.70 ...

»¹ÓУ¬ÎÒÖ»ÊÇÏë×ö¸ö´øÔ¼ÊøµÄ£¬·ÇÏßÐÔ×îС¶þ³ËµÄÄâºÏ¡£Äú¾õµÃÎÒÓÃÄĸöÊýѧÈí¼þ±È½ÏºÃ£¿
16Â¥2013-06-22 14:25:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

walk1997

½ð³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
16Â¥: Originally posted by icecream8508 at 2013-06-22 14:25:18
»¹ÓУ¬ÎÒÖ»ÊÇÏë×ö¸ö´øÔ¼ÊøµÄ£¬·ÇÏßÐÔ×îС¶þ³ËµÄÄâºÏ¡£Äú¾õµÃÎÒÓÃÄĸöÊýѧÈí¼þ±È½ÏºÃ£¿...

ÎÒ¸öÈËÊÇϲ»¶ÓÃmathematica ÒòΪÓÐʱºòÓÐÒª½âÎö¼ÆËãµÄÐèÒª
²»ÊÇÌØ±ð×·ÇóËÙ¶È»ò´óÐÍÊýÖµ¼ÆËã»òÓ¦ÓÃÌØ¶¨°üµÈµÄ»°
ÎÒ¾õµÃ×öÒ»°ãµÄ¹¤×÷ mathematica×ãÒÔʤÈÎ ÄÚ²¿ÌṩµÄ¹¦ÄܺÜÓÐЧÂʺÍÇ¿´ó  ÉÏÊÖÒ²±È½Ï¿ì
ÉÏÃæµÄԭʼÊý¾ÝÊÇÖ±½ÓÏÂÔØÄãµÄ¸½¼þµÄ ¿ÉÄÜ×îºó¼¸Î»ÓеãС²îÒì µ«ÊÇÕûÌåÐÔÖʿ϶¨²»±ä »á²»»áÄãÉÏ´«µÄÊý¾Ý²»¶Ô£¿
17Â¥2013-06-22 14:49:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

walk1997

½ð³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
16Â¥: Originally posted by icecream8508 at 2013-06-22 14:25:18
»¹ÓУ¬ÎÒÖ»ÊÇÏë×ö¸ö´øÔ¼ÊøµÄ£¬·ÇÏßÐÔ×îС¶þ³ËµÄÄâºÏ¡£Äú¾õµÃÎÒÓÃÄĸöÊýѧÈí¼þ±È½ÏºÃ£¿...

Ô­ÎÄÏ׿´À´ÊÇÓÃMathCAD ÄãÒ²¿ÉÒÔ³¢ÊÔÏ Ӧ¸ÃÊǸü¼òµ¥µÄ¹¤¾ßÈí¼þ
18Â¥2013-06-22 14:50:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ loopool5358 µÄÖ÷Ìâ¸üÐÂ
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