nway
======================================
nway is a source cross-matching tool for arbitrarily many astronomical catalogues.
Features
----------
* Bayesian match probabilities based on astronomical sky coordinates (RA, DEC)
* Works with arbitrarily many catalogues
* Can handle varying errors
* Can incorporate additional prior information, such as the magnitude or color distributions of the sources to match
* Works accurately and fast in small areas and all-sky catalogues
Documentation
---------------
See the manual in the doc/ folder, https://github.com/JohannesBuchner/nway/raw/master/doc/nway-manual.pdf
A full worked example with demo catalogues is included.
Installation
---------------
The easiest way to install nway is with pip::
$ pip install nway
Add --user if you do not have admin privileges. Alternatively,
download the source code and run "python setup.py install".
nway uses the following python packages:
* numpy, scipy, matplotlib
* astropy
* tqdm
* joblib
* healpy
* pandas
nway works with both Python 3 and Python 2 and various astropy versions.
.. image:: https://codecov.io/gh/JohannesBuchner/nway/branch/master/graph/badge.svg
:target: https://codecov.io/gh/JohannesBuchner/nway
.. image:: https://travis-ci.com/JohannesBuchner/nway.svg?branch=master
:target: https://travis-ci.com/JohannesBuchner/nway
Reporting issues
-----------------
Please file an issue on Github if you have any problems.
Citing nway correctly
----------------------
Please cite Salvato et al (2017). https://arxiv.org/abs/1705.10711 (`Get BibTex <http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2017arXiv170510711S&data_type=BIBTEX&db_key=PRE&nocookieset=1>`_)
Licence
---------------
This program is free and open-source software,
licensed under AGPLv3 (see LICENSE and COPYING files).
Written by Johannes Buchner (C) 2013-2020
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