How do I get A and B fitting coefficients after fitting a power law curve using fit function

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Syeda Tabassum
Syeda Tabassum 2015-11-24
回答： Torsten 2015-11-25
Hi I am trying to extract fitting coefficient from f.
x=[100,200,300,400,500,600,700,800]';
y=[5, 14, 16, 17, 18,19, 21, 22]';
f=fit(x,y, 'power1');
f is something like this:
f =
General model Power1:
f(x) = a*x^b
Coefficients (with 95% confidence bounds):
a = 0.9937 (-0.2434, 2.231)
b = 0.467 (0.268, 0.666)
I need to extract this a and b value. How can I get that?
Thanks.

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Torsten
Torsten 2015-11-25

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