How to fit a curve to a power spectrum curve which follows power law

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How to fit a curve to a power spectrum curve which follows power law

Answers (1)

Mona Mahboob Kanafi
Mona Mahboob Kanafi on 13 Aug 2013
Edited: Mona Mahboob Kanafi on 14 Aug 2013
Hi,
Go to cftool, then select your data and choose power; set number of terms to '1' if it follows this equation: y = a*x^b
Also you can do this on command window:
f = fit(x,y,'power1');
and then if you want the parameters just use this command:
coefs = coeffvalues(f);

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