def f(x, a, b, n):
        return a * x ** n  / (x ** n + b)

(1) What is this "saturation dynamics" model? What do its parameters mean? How can I use the above models to fit any of the other data similar to my dataset?

(2) Also, I read something about "fit[ting] the logarithm of the model" as initial conditions in case I wanted to use another model...what does that mean?

[1]: https://pastebin.com/A3s9dUKp [2]: https://stackoverflow.com/questions/45554107/asymptotic-regression-in-python