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x=[0;0.0909100000000000;0.148940000000000;0.230770000000000;0.272730000000000;0.310340000000000;0.400000000000000;0.500000000000000;0.571430000000000;0.666670000000000;0.800000000000000;1]; >> y=[0;0.399150000000000;0.558020000000000;0.597720000000000;0.637450000000000;0.697020000000000;0.776450000000000;0.849910000000000;0.883680000000000;0.925390000000000;0.935300000000000;0.984960000000000]; >> fun=@(p,x)(((x./p(3))./(1-(x./p(3))))+((p(1).*(x.^p(1)).*p(2)))./(1+x1.^p(1).*p(2))); >> x0=[1,7,10]; >> p=lsqcurvefit(fun,x0,x1,y) Local minimum possible. lsqcurvefit stopped because the final change in the sum of squares relative to its initial value is less than the default value of the function tolerance. ÒÔÉÏÊÇÎÒÔËÐÐÖеÄÊý¾Ý£¬·½³ÌÒÔ¼°³öÏÖµÄÎÊÌ⣬Âé·³Äú¸ø¿´¿´ÊÇÄÄÀï³ýÁËÎÊÌ⣬лл£¡ |
3Â¥2021-03-18 16:57:10
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4Â¥2021-03-18 20:11:38














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