I got tired of the merging and cleaning of international relations data, so I put it all together in a relational database.

It is similar to EUGene, but uses an relational database backend, and is much less complete.

The database currently includes the following datasets:

• COW State System Membership 2008.1 http://www.correlatesofwar.org/
• COW Wars v 4.0 http://www.correlatesofwar.org/ (Inter-, Intra-, and Non-State Wars)
• COW Wars v 3.0 http://www.correlatesofwar.org/
• COW National Material Capabilities v 4.0 http://www.correlatesofwar.org/
• COW Direct Contiguity v 3.1 http://www.correlatesofwar.org/
• Polity IV (2010) http://www.systemicpeace.org/inscr/inscr.htm
• Kristian Skrede Gleditsh (KSG) List of independent states
• Kristian Skrede Gleditsh (KSG) Modified Polity data

The code is generally database agnostic since it is written with in sqlalchemy. I have tested it with sqlite and postgresql.

To install irdata as a sqlite database at path/to/database/irdata.db.

$ python build_irdata.py sqlite:///path/to/database/irdata.db

To install irdata to the postgresql database irdata

First create the database if it doesn't exist.

$ createdb irdata

$ python build_irdata.py postgresql://user@hostname/irdata

• add all datasets currently in COW and EUGene
• add a HTSQL frontend