Welcome to ytree.

ytree is a tool for working with merger-tree data from multiple sources. ytree is an extension of the yt analysis toolkit and provides a similar interface for merger-tree data that includes universal field names, derived fields, and symbolic units. ytree can create merger-trees from Gadget FoF/Subfind catalogs, either for all halos or for a specific set of halos. ytree is able to load in merger-tree from the following formats:

All formats can be saved with a universal format that can be reloaded with ytree. Individual trees for single halos can also be saved.

Citing ytree

If you use ytree in your work, please cite it as “ytree, written by Britton Smith and the yt project” with a footnote pointing to http://ytree.readthedocs.io.