My students are using this and seem to like it:

https://jekel.me/piecewise_linear_fit_py/about.html
 
Date: Tue, 1 Jun 2021 17:22:52 -0700
From: Chris Barker <chris.barker@noaa.gov>
To: Discussion of Numerical Python <numpy-discussion@python.org>
Subject: [Numpy-discussion] Best fit linear piecewise function?
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Do any of you know of code for finding an optimum linear piecewise fit to a
set of points?

Somethin like what is described in this article:

https://www.hindawi.com/journals/mpe/2015/876862/

At a glance, that looked just hard enough to code up that I'm hoping
someone has already done it :-)

-CHB


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Christopher Barker, Ph.D.
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