Failure in initial objective function evaluation. LSQCURVEFIT cannot continue.

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凯 何
凯 何 2021-3-24
评论： Matt J 2021-3-24
t=0:20;
N=[3.9000 5.2000 7.2000 9.6000 12.9000 17.1000 23.2000 31.4000 38.6000 50.2000 62.9000 76.0000 92.6000 106.5000 123.2000 131.7000 150.7000 179.3000 204.0000 226.5000 251.4000]
x0=[300.0000 0.3000]
x = lsqcurvefit(@logistic,x0,t,N)
f=logistic(x,t);
plot(t,N,'.',t,f,'m')
xlabel(Year)
ylabel(Population)

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