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大岩不惭

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[求助] 用origin8.5进行非线性拟合时跳出一个对话框,内容如下 已有1人参与

用origin8.5进行非线性拟合时跳出一个对话框,内容如下:Fit did not converge - mutual dependency exists between parameters.
You may have overparameterized the fitting function. Fixing one of them may eliminate this problem.
Fitting was done with weights. Check weighting method and error bar values for possible inconsistencies, or try fitting again with weights turned off.
这是神马意思,说我拟合的不好吗,可看着图还不错啊,求大神指点
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月只蓝

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【答案】应助回帖


感谢参与,应助指数 +1
fegg7502: 金币+1, 鼓励交流 2014-05-04 08:11:49
参数之间存在依赖性,存在过参数化
可参见:http://www.douban.com/note/92521266/
MATLAB、MS小问题、普通问题请发帖求助!时间精力有限,恕不接受无偿私信求助。
2楼2014-05-03 17:15:31
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别路洋

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有没有8.5的软件呢,现在8.0的好多都好像用不成
3楼2014-05-19 11:35:30
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