xarray: N-D labeled Arrays and Datasets in Python

  • Hoyer S
  • Hamman J
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Abstract

xarray is an open source project and Python package that provides a toolkit and data structures for N-dimensional labeled arrays. Our approach combines an application programing interface (API) inspired by pandas with the Common Data Model for self-described scientific data. Key features of the xarray pack- age include label-based indexing and arithmetic, interoperability with the core scientific Python packages (e.g., pandas, NumPy, Matplotlib), out-of-core computation on datasets that don’t fit into memory, a wide range of serialization and input/output (I/O) options, and advanced multi-dimensional data manipulation tools such as group-by and resampling. xarray, as a data model and analytics toolkit, has been widely adopted in the geoscience community but is also used more broadly for multi-dimensional data analysis in physics, machine learning and finance.

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Hoyer, S., & Hamman, J. J. (2017). xarray: N-D labeled Arrays and Datasets in Python. Journal of Open Research Software, 5. https://doi.org/10.5334/jors.148

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