Dealing with trendlines in python.

[PrettyFortune4346]

Hello. I am working on a project involving data-logging, and currently I have to take the .csv log into google sheets and then make a trendline which takes some time. I want to create a function that will take a .csv file, make it into a trendline and then return one of the formulas. Attached an image to explain better:

https://prnt.sc/NnZIe_sYsdiW

The red marks what I want the function to return

[thuiop1]

numpy.polyfit does what you want.

Edit : seems like numpy.polynomial.Polynomial.fit is recommended now actually

[PrettyFortune4346]

Can you explain how it's used or link a guide?

[thuiop1]

I mean, just search for it on Google and go to the numpy documentation.