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Project Description

Welcome to GWSurrogate!

GWSurrogate is an easy to use interface to gravitational wave surrogate models.

Surrogates provide a fast and accurate evaluation mechanism for gravitational waveforms which would otherwise be found through solving differential equations. These equations must be solved in the “building” phase, which was performed using other codes. For details see:

[1] Scott Field, Chad Galley, Jan Hesthaven, Jason Kaye, and Manuel Tiglio. `”Fast prediction and evaluation of gravitational waveforms using surrogate models”. Phys. Rev. X 4, 031006 (2014). arXiv: gr-qc:1308.3565

If you find this package useful in your work, please cite reference [1] and, if available, the relevant paper describing the specific surrogate used.

gwsurrogate is available at https://pypi.python.org

Installation

gwsurrogate is a pure-Python module, thus installation is very easy.

From pip

The python package pip supports installing from PyPI (the Python Package Index). gwsurrogate can be installed to the standard location (e.g. /usr/local/lib/pythonX.X/dist-packages) with

>>> pip install gwsurrogate

From source

Download and unpack gwsurrogate-X.X.tar.gz to any folder gws_folder of your choosing. The gwsurrogate module can be used immediately by adding

import sys
sys.path.append('absolute_path_to_gws_folder')

at the beginning of any script/notebook which uses gwsurrogate.

Alternatively, if you are a bash or sh user, edit your .profile (or .bash_profile) file and add the line

export PYTHONPATH=~absolute_path_to_gws_folder:$PYTHONPATH

For a “proper” installation into gws_folder run

>>> python setup.py install --prefix=absolute_path_to_gws_folder

and edit the PYTHONPATH environment variable as described above.

Getting Started

Please read the gwsurrogate docstring found in the init.py file or from ipython with

>>> import gwsurrogate as gws
>>> gws?

Additional examples can be found in the accompanying ipython notebooks located in the ‘tutorial’ folder. To open a notebook, for example basics.ipynb, do

>>> ipython notebook basics.ipynb

from the directory ‘notebooks’

Where to find surrogates?

Surrogates can be downloaded directly from gwsurrogate. For download instructions see the basics.ipynb ipython notebook. Also visit the NR surrogate database.

Tests

If you have downloaded the entire project as a tar.gz file, from the top folder, do

>>> py.test

NSF Support

This package is based upon work supported by the National Science Foundation under PHY-1316424 and PHY-1208861.

Any opinions, findings, and conclusions or recommendations expressed in gwsurrogate are those of the authors and do not necessarily reflect the views of the National Science Foundation.

Release History

Release History

0.6.2

This version

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0.5

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0.4.2

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0.4.0

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0.3.1

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0.3

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0.2.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
gwsurrogate-0.6.2.tar.gz (4.1 MB) Copy SHA256 Checksum SHA256 Source Jan 9, 2017

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