Hysteresis is a library of tools for non-functional curves, with an emphasis on force-deformation hysteresis curves. While functions only have one direction, non-functional curves change direction and each x is mapped to more than one y. Hysteresis breaks up these curves into a number of functions that can be easily analyzed. Some key features of the library include:
- Finding peaks or reversal points in data.
- Numerically finding the slope or area of a curve.
- Resampling curves.
- Comparing Hysteresis made with simialar load protocols.
A overview of the functions currently availible to users can be found here: https://hysteresis.readthedocs.io/en/latest/
Some selected examples can be found here: https://github.com/cslotboom/hysteresis/tree/master/examples
A basic demo of the hystresis object. Hysteresis can split up a non-function into a number of cycles that are functions. This allows them to be analyzed more easily or compared with other hystereses.
Hysteresis is pip installable via:
pip install hysteresis
Using Hysteresis, it's possible to:
Find peaks
Find cycles:
Find energy in a hysteresis:
Down sample a hysteresis:
A SimpleCycle is Curve that is a function, that is, each x value is paired with a single y value. The term "Cycle" is a little nebulus, as it implies that we return to where we started.
A MonotonicCurve is a Curve that only increases or decreases