Python package to translate between gdx (GAMS data) and pandas.
gdx-pandas: Python package to translate between gdx (GAMS data) and pandas.
There are two main ways to use gdxpds. The first use case is the one that was initially supported: direct conversion between GDX files on disk and pandas DataFrames or a csv version thereof. Starting with the Version 1.0.0 rewrite, there is now a second style of use which involves interfacing with GDX files and symbols via the gdxpds.gdx.GdxFile and gdxpds.gdx.GdxSymbol classes.
Please visit https://nrel.github.io/gdx-pandas for the latest documentation.
Python 3.4 or 3.6 (gdx-pandas support for Python 2.X has been discontinued; GAMS does not yet support Python 3.7)
pandas (In general you will want the SciPy stack. Anaconda comes with it, or see [my notes for Windows](https://elainethale.wordpress.com/programming-notes/python-environment-set-up/).)
For Python versions < 3.4, enum34. Also uninstall the enum package if it is installed.
Put the GAMS directory in your PATH and/or assign it to the GAMS_DIR environment variable
- GAMS Python bindings
See GAMS/win64/XX.X/apifiles/readme.txt on Windows, GAMS/gamsXX.X_osx_x64_64_sfx/apifiles/readme.txt on Mac, or /opt/gams/gamsXX.X_linux_x64_64_sfx/apifiles/readme.txt on Linux
Run the following for the correct version of the Python bindings
`bash python setup.py install `
`bash python setup.py build --build-base=/path/to/somwhere/you/have/write/access install `
with the latter being for the case when you can install packages into Python but don’t have GAMS directory write access.
For Python 3.X, use …/apifiles/Python/api_XX/setup.py. For Python 3.X in particular you will need GAMS version >= 24.5.1 (Python 3.4, Windows and Linux), 24.7.4 (Python 3.4, Mac OS X), or >= 24.8.4 (Python 3.6)
After installation, you can test the package using pytest:
pytest –pyargs gdxpds
If the tests fail due to permission IOErrors, apply chmod g+x and chmod a+x to the gdx-pandas/gdxpds/test folder.
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