To fit an exponential curve with Python and SciPy, the curve_fit function from scipy.optimize can be used. The curve_fit function takes a function with the desired curve shape as an argument, as well ...

It returns a "p-value" that should be >0.1 if a power-law fit is to be considered (though a high p-value does not ensure that the distribution function is a power law!). plexp_inv creates a cutoff ...