============
Installation
============

------------
Requirements
------------

Software
^^^^^^^^

* `Cytoscape 3.3.0 or later <http://www.cytoscape.org/download.php>`_

Hardware
^^^^^^^^

* At least 8Gb of memory, more if you are planning to load 100+ individuals cohort files.

----------------
App installation
----------------

* Launch Cytoscape
* Download the App: :download:`Gravity 2.0.0 <Gravity-impl-2.0.0.jar>`
* In Cytoscape, go to *Apps* -> *App Manager...*; then click on the *Install from file...* button, then chose the *Gravity-impl-2.0.0.jar* file you downloaded at the previous step.
* That's it!

.. figure:: images/installation/app_manager.png
  :figclass: align-center

  *In the App manager window, click on "Install from file..."*

.. note::
  If a previous version of Gravity was installed and you want to perform a clean installation with default parameters, do as follow:

  * start Cytoscape
  * go to *Apps* -> *App Manager...*; in the *currently installed* tab, select *Gravity* and click *Uninstall*
  * exit all running instances of Cytoscape
  * go to the *CytoscapeConfiguration* directory in your home directory and delete all the *props* files with names starting with *Gravity.*