Project: coffea

Basic tools and wrappers for enabling not-too-alien syntax when running columnar Collider HEP analysis.

Project Details

Latest version
2023.12.0
Home Page
PyPI Page
https://pypi.org/project/coffea/

Project Popularity

PageRank
0.014514782561385985
Number of downloads
126059

coffea - Columnar Object Framework For Effective Analysis

.. image:: https://zenodo.org/badge/159673139.svg :target: https://zenodo.org/badge/latestdoi/159673139

.. image:: https://github.com/CoffeaTeam/coffea/workflows/CI%2FCD/badge.svg :target: https://github.com/CoffeaTeam/coffea/actions?query=workflow%3ACI%2FCD+event%3Aschedule+branch%3Amaster

.. image:: https://codecov.io/gh/CoffeaTeam/coffea/branch/master/graph/badge.svg?event=schedule :target: https://codecov.io/gh/CoffeaTeam/coffea

.. image:: https://badge.fury.io/py/coffea.svg :target: https://badge.fury.io/py/coffea

.. image:: https://img.shields.io/pypi/dm/coffea.svg :target: https://img.shields.io/pypi/dm/coffea

.. image:: https://img.shields.io/conda/vn/conda-forge/coffea.svg :target: https://anaconda.org/conda-forge/coffea

.. image:: https://badges.gitter.im/CoffeaTeam/coffea.svg :target: https://matrix.to/#/#coffea-hep_community:gitter.im

.. image:: https://mybinder.org/badge_logo.svg :target: https://mybinder.org/v2/gh/CoffeaTeam/coffea/master?filepath=binder/

.. inclusion-marker-1-do-not-remove

Basic tools and wrappers for enabling not-too-alien syntax when running columnar Collider HEP analysis.

.. inclusion-marker-1-5-do-not-remove

coffea is a prototype package for pulling together all the typical needs of a high-energy collider physics (HEP) experiment analysis using the scientific python ecosystem. It makes use of uproot <https://github.com/scikit-hep/uproot4>_ and awkward-array <https://github.com/scikit-hep/awkward-1.0>_ to provide an array-based syntax for manipulating HEP event data in an efficient and numpythonic way. There are sub-packages that implement histogramming, plotting, and look-up table functionalities that are needed to convey scientific insight, apply transformations to data, and correct for discrepancies in Monte Carlo simulations compared to data.

coffea also supplies facilities for horizontally scaling an analysis in order to reduce time-to-insight in a way that is largely independent of the resource the analysis is being executed on. By making use of modern big-data technologies like Apache Spark <https://spark.apache.org/>, parsl <https://github.com/Parsl/parsl>, Dask <https://dask.org>_ , and Work Queue <http://ccl.cse.nd.edu/software/workqueue>_, it is possible with coffea to scale a HEP analysis from a testing on a laptop to: a large multi-core server, computing clusters, and super-computers without the need to alter or otherwise adapt the analysis code itself.

coffea is a HEP community project collaborating with iris-hep <http://iris-hep.org/>_ and is currently a prototype. We welcome input to improve its quality as we progress towards a sensible refactorization into the scientific python ecosystem and a first release. Please feel free to contribute at our github repo <https://github.com/CoffeaTeam/coffea>_!

.. inclusion-marker-2-do-not-remove

Installation

Install coffea like any other Python package:

.. code-block:: bash

pip install coffea

or similar (use sudo, --user, virtualenv, or pip-in-conda if you wish). For more details, see the Installing coffea <https://coffeateam.github.io/coffea/installation.html>_ section of the documentation.

Strict dependencies

  • Python <http://docs.python-guide.org/en/latest/starting/installation/>__ (3.8+)

The following are installed automatically when you install coffea with pip:

  • numpy <https://scipy.org/install.html>__ (1.22+);
  • uproot <https://github.com/scikit-hep/uproot5>__ for interacting with ROOT files and handling their data transparently;
  • awkward-array <https://github.com/scikit-hep/awkward>__ to manipulate complex-structured columnar data, such as jagged arrays;
  • numba <https://numba.pydata.org/>__ just-in-time compilation of python functions;
  • scipy <https://scipy.org/scipylib/index.html>__ for many statistical functions;
  • matplotlib <https://matplotlib.org/>__ as a plotting backend;
  • and other utility packages, as enumerated in pyproject.toml.

.. inclusion-marker-3-do-not-remove

Documentation

All documentation is hosted at https://coffeateam.github.io/coffea/

Citation

If you would like to cite this code in your work, you can use the zenodo DOI indicated in CITATION.cff, or the latest DOI <https://zenodo.org/badge/latestdoi/159673139>__. You may also cite the proceedings:

  • "N. Smith et al 2020 EPJ Web Conf. 245 06012"
  • "L. Gray et al 2023 J. Phys.: Conf. Ser. 2438 012033"