A model input data management and analysis tool for MESSAGEix.

To start using the open source Python package d2ix, you must to ensure that your environment is equipped with the MESSAGEix requirements (Python 3.6 via Anaconda, GAMS and Java) as described in the README instructions found alongside the MESSAGEix repository. Once all requirements are fulfilled, the cloned or forked d2ix_public repository can be installed. To install d2ix:

1. Install Python via Anaconda. We recommend the latest version, e.g., Python 3.7+.

2. Install GAMS. Importantly:

   • Check the box labeled Use advanced installation mode
   • Check the box labeled Add GAMS directory to PATH environment variable on the Advanced Options page.

3. Open a command prompt and type

   conda env create -f environment.yml
   

4. To use d2ix, you need to activate the d2ix environment each time. On Windows:

   activate d2ix
   

A introductory tutorial is provided for d2ix in the repository under https://github.com/tum-ewk/d2ix/tutorial.ipynb.

• MESSAGEix Tutorials
• MESSAGEix Documentation
• The ix modeling platform (ixmp)