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A Python library for computing integrated information.

Project description

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PyPhi: 𝚽 for Python

PyPhi is a Python library for computing integrated information (𝚽), and the associated quantities and objects.

If you use this code, please cite both this repository (DOI 10.5281/zenodo.12194) and the IIT 3.0 paper (DOI 10.1371/journal.pcbi.1003588).

Usage, Examples, and API documentation

Check out the documentation for the latest release, or the documentation for the latest development version.

The documentation is also available within the Python interpreter with the help function.

Installation

To install the latest release:

pip install pyphi

To install the latest development version:

pip install "git+https://github.com/wmayner/pyphi@develop#egg=pyphi"

Result caching and MongoDB

PyPhi stores the results of 𝚽 calculations as they’re computed in order to avoid expensive re-computation. These results can be stored locally on the filesystem (the default setting), or in a full-fledged database. Using the default caching system is easier and works out of the box, but using a database is more robust.

To use the database-backed caching system, you must install MongoDB. Please see their installation guide for instructions.

Once you have MongoDB installed, use mongod to start the MongoDB server. Make sure the mongod configuration matches the PyPhi’s database configuration settings in pyphi_config.yml (see the configuration section of PyPhi’s documentation).

You can also check out MongoDB’s Getting Started guide or the full manual.

Contributing

To help develop PyPhi, fork the project on GitHub and install the requirements with pip install -r requirements.txt.

Development workflow

Gruntfile.js defines some tasks to help with development. These are run with Grunt.js.

To get grunt, first install Node.js. Then, within the pyphi directory, run npm install to install the local npm dependencies, then run sudo npm install -g grunt grunt-cli to install the grunt command to your system. Now you should be able to run tasks with grunt, e.g.

grunt test

which will run the unit tests every time you change the source code. Similarly,

grunt docs

will rebuild the HTML documentation on every change.

At some point I’ll try to use a Makefile instead, since many more people have access to make.

Developing on Linux

Make sure you install the Python 3 C headers before installing the requirements:

sudo apt-get install python3-dev python3-scipy python3-numpy

Credits

This code is based on a previous project written in Matlab by L. Albantakis, A. Hashmi, A. Nere, U. Olces, P. Rana, and B. Shababo.

Correspondence regarding the Matlab code and the IIT 3.0 paper (below) should be directed to Larissa Albantakis, PhD, at albantakis@wisc.edu.

Please cite this paper if you use this code:

Albantakis L, Oizumi M, Tononi G (2014) From the Phenomenology to the Mechanisms of Consciousness: Integrated Information Theory 3.0. PLoS Comput Biol 10(5): e1003588. doi: 10.1371/journal.pcbi.1003588

@article{iit3,
    author = {Albantakis, , Larissa AND Oizumi, , Masafumi AND Tononi, ,
        Giulio},
    journal = {PLoS Comput Biol},
    publisher = {Public Library of Science},
    title = {From the Phenomenology to the Mechanisms of Consciousness:
        Integrated Information Theory 3.0},
    year = {2014},
    month = {05},
    volume = {10},
    url = {http://dx.doi.org/10.1371%2Fjournal.pcbi.1003588},
    pages = {e1003588},
    number = {5},
    doi = {10.1371/journal.pcbi.1003588}
}

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