Curve fitting a power function

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,

Answer 1

[Ameer Hamza]

If h and Q are vectors then try

ft = fittype('c*(h+a)^b', 'independent', 'h');
fit_model = fit(h(:), Q(:), ft);