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lm200944021木蟲 (初入文壇)
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[求助]
我想要模擬 x,y,z的關(guān)系,x和y是自變量,z是因變量,函數(shù)關(guān)系已知,只擬合常數(shù)
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function liu clear all; clc x=[1.967545 2.956682 3.948605 4.942718 5.938462 7.938716 11.93423 19.94424]; y=[5.11341712 5.10398619 5.09562666 5.08833017 5.08208944 5.06912749 5.05724953 5.04336904]; z=[1.05595 1.259945 1.416935 1.555427 1.687987 1.876324 2.420285 3.444629]; beta0=[0.9 0.8 0.333] [beta,resnorm,residual]=lsqcurvefit(@OBjFuc,[],[],[],x,y,z) function f=OBjFuc(beta,x,y,z) f=z-beta(1)*power(x,beta(2))*power(y,beta(3)); 提示MATLAB Failure in initial user-supplied objective function evaluation. LSQCURVEFIT,請問怎么改,謝謝! |
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