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R bindings for the xtensor C++ multi-dimensional array library.

Introduction

What are xtensor and xtensor-r?

  • xtensor is a C++ library for multi-dimensional arrays enabling numpy-style broadcasting and lazy computing.

  • xtensor-r enables inplace use of R arrays with all the benefits from xtensor

    • C++ universal functions and broadcasting
    • STL - compliant APIs.

The numpy to xtensor cheat sheet from the xtensor documentation shows how numpy APIs translate to C++ with xtensor.

The Python bindings for xtensor are based on the Rcpp C++ library, which enables seemless interoperability between C++ and Python.

Enabling R arrays in your C++ libraries

Instead of exposing new types to R, xtensor-r enables the use of R data structures from C++ using R's C API.

In addition to the basic accessors and iterators of xtensor containers, it also enables using R arrays with xtensor's expression system.

Besides xtensor-r provides an API to create Universal functions from simple scalar functions from your C++ code.

xtensor and xtensor-r require a modern C++ compiler supporting C++14. The following C++ compilers are supported:

  • On Windows platforms, Visual C++ 2015 Update 2, or more recent
  • On Unix platforms, gcc 4.9 or a recent version of Clang

Licensing

We use a shared copyright model that enables all contributors to maintain the copyright on their contributions.

This software is licensed under the BSD-3-Clause license. See the LICENSE file for details.

.. toctree::
   :caption: INSTALLATION
   :maxdepth: 2

   installation



.. toctree::
   :caption: USAGE
   :maxdepth: 2

   basic_usage
   array_tensor
   r_peculiarities


.. toctree::
   :caption: API REFERENCE
   :maxdepth: 2

   api_reference


.. toctree::
   :caption: DEVELOPER ZONE

   releasing