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【答案】应助回帖

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dp2007good: 金币+10, ★有帮助, 不会用1stOpt,谢谢你的帮助。金币全给你吧 2014-10-18 09:07:07
Origin拟合对初值有要求,远不如1stOpt来的方便快捷:
CODE:
Function y=x/(a+b*x^c);
Data;
1        1.92101E6
3        2.46732E6
5        2.90273E6
7        2.56134E6
9        2.12618E6
11        1.86739E6

均方差(RMSE):188161.103385861
残差平方和(SSE):212427604964.307
相关系数(R): 0.861699944460337
相关系数之平方(R^2): 0.742526794282949
确定系数(DC): 0.741012708289513
卡方系数(Chi-Square): 42518.2860230533
F统计(F-Statistic): 5.79178997584483

参数        最佳估算
----------        -------------
a        4.33269888281103E-7
b        1.16555683043118E-7
c        1.57011868323796

====== 结果输出 ======

No        实测值y        计算值y
1        1921010        1818758.62483362
2        2467320        2758850.27229939
3        2902730        2642591.80541858
4        2561340        2407578.0187885
5        2126180        2192734.10172033
6        1867390        2013123.61304781
2楼2014-10-17 21:42:16
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