Hi everyone, ytree version 2.2 is released! ytree is an extension of yt for working with merger-tree data from multiple sources. This release adds a couple new features as well as improvements for i/o and memory usage. - New feature: vector fields return x/y/z components of a vector as a single array with automatically created magnitude fields. - New feature: a select_halos function to search all trees for halos matching specified criteria. - Enhancement: significant refactors of the field and i/o systems to reduce memory, speed up field access, and simplify implementing new frontends. - Enhancement: upgrades to the testing infrastructure. ytree can be installed with pip: pip install ytree or from source, by going to https://github.com/brittonsmith/ytree git clone https://github.com/brittonsmith/ytree cd ytree pip install -e . Full documentation can be found at http://ytree.readthedocs.io/. As always, ytree would be nothing without the wonderful yt community. Thanks to all those amazing people! Britton
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Britton Smith