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impedance.py is a Python package for making electrochemical impedance spectroscopy (EIS) analysis reproducible and easy-to-use.

Aiming to create a consistent, scikit-learn-like API for impedance analysis, impedance.py contains modules for data preprocessing, validation, model fitting, and visualization.

For a little more in-depth discussion of the package background and capabilities, check out our Journal of Open Source Software paper.

If you have a feature request or find a bug, please file an issue or, better yet, make the code improvements and submit a pull request! The goal is to build an open-source tool that the entire impedance community can improve and use!

The easiest way to install impedance.py is from PyPI using pip.

pip install impedance

See Getting started with impedance.py for instructions on getting started from scratch.

impedance.py requires:

• Python (>=3.7)
• SciPy (>=1.0)
• NumPy (>=1.14)
• Matplotlib (>=3.0)
• Altair (>=3.0)

Several example notebooks are provided in the docs/source/examples/ directory. Opening these will require Jupyter notebook or Jupyter lab.

Several examples can be found in the docs/source/examples/ directory (the Fitting impedance spectra notebook is a great place to start) and the documentation can be found at impedancepy.readthedocs.io.

If you use impedance.py in published work, please consider citing https://joss.theoj.org/papers/10.21105/joss.02349 as

@article{Murbach2020,
  doi = {10.21105/joss.02349},
  url = {https://doi.org/10.21105/joss.02349},
  year = {2020},
  publisher = {The Open Journal},
  volume = {5},
  number = {52},
  pages = {2349},
  author = {Matthew D. Murbach and Brian Gerwe and Neal Dawson-Elli and Lok-kun Tsui},
  title = {impedance.py: A Python package for electrochemical impedance analysis},
  journal = {Journal of Open Source Software}
}

This project started at the 2018 Electrochemical Society (ECS) Hack Week in Seattle and has benefited from a community of users and contributors since. Thanks goes to these wonderful people (emoji key):

Lok-kun Tsui 💻 ⚠️ 📖	Brian Gerwe 💻 ⚠️ 📖 👀	Neal 👀 💻	Matt Murbach 📖 👀 ⚠️ 💻	Kenny Huynh 🐛 💻	lawrencerenna 🤔	Rowin 🐛 💻
Michael Plews 🤔	Chebuskin 🐛	environmat 🐛	Abdullah Sumbal 🐛	nobkat 💻	Nick 🐛 💻	aokomorowski 💻
Peter Attia 💻 ⚠️ 📖	sdkang ⚠️ 💻	lucasfdvx 🐛	Marcus Karlstad 🐛	Mark Bouman 🐛 💻	oslopanda 🐛	pililac 🐛
Kavin Teenakul 💻 📖	Enrico 💻

This project follows the all-contributors specification. Contributions of any kind welcome!