Curve fitting a power function

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Asanka Subasinghe
编辑： Ameer Hamza 2020-4-1
I am wondering how to fit my data to a power function of the form Q=c(h+a)^b
where Q is the flow rate data and h is the stage height. How can I identify a,b, and c?
Thanks,

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-4-1
编辑：Ameer Hamza 2020-4-1
If h and Q are vectors then try
ft = fittype('c*(h+a)^b', 'independent', 'h');
fit_model = fit(h(:), Q(:), ft);

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