This is yt_astro_analysis, the yt extension package for astrophysical analysis. This is primarily machinery that used to be in yt's analysis_modules. These were made into a separate package to allow yt to become less astro-specifc and to allow these modules to be developed on their own schedule.

Full installation documentation can also be found here.

To install yt_astro_analysis, you will first need to install yt. Then do,

$ pip install yt_astro_analysis

If you use conda, do,

$ conda install -c conda-forge yt_astro_analysis

If you would like to build yt_astro_analysis from source, clone the git repository and install like this:

git clone https://github.com/yt-project/yt_astro_analysis
cd yt_astro_analysis
pip install -e .

In order to run the Rockstar halo finder from within yt_astro_analysis, you will need to install rockstar-galaxies from either John Wise's repository or Peter Behroozi's repository. To install Rockstar, do the following:

git clone https://bitbucket.org/jwise77/rockstar-galaxies
cd rockstar-galaxies
make lib

Then, go into the yt_astro_analysis source directory and add a file called "rockstar.cfg" with the path the Rockstar repo you just cloned. Then, install yt_astro_analysis.

cd yt_astro_analysis
echo <path_to_rockstar> > rockstar.cfg
pip install -e .

Finally, you'll need to make sure that the location of librockstar-galaxies.so is in your LD_LIBRARY_PATH.

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<path_to_rockstar>

For every module that was moved from yt's analysis_modules to yt_astro_analysis, all imports can be changed simply by substituting yt.analysis_modules with yt.extensions.astro_analysis. For example, the following

from yt.analysis_modules.ppv_cube.api import PPVCube

becomes

from yt.extensions.astro_analysis.ppv_cube.api import PPVCube

We really want your contributions! As an official yt-project extension, everything in the yt Contributor Guide applies here.

If you'd rather make your own standalone package, we want to support that, too! Please, consider making your package a yt extension.

As an extension of the yt-project, the yt resources are available for help.

• The latest documentation can be found at https://yt-astro-analysis.readthedocs.io/