* Minor typos
* fix minor bugs
* pep8
* formatting
* pep8
* Fix minor bugs
* New path & pep8
* add splitt
* Updates
* Improve calculation within radius
* pep8
* pep8
* get the script working
* Add matter overdensity
* Add m200m to the script
* Fix looping bug
* add parents support
* add import
* Optionally concatenate velocities
* Make optional masking
* Ignore the error message
* Start reading in raw data
* Fix cat reading
* Additional units conversions
* Add clump reading
* Fix indexing
* Remove old comment
* Remove old comment
* set npart to 0 instead of overflow from NaN
* fix docs
* rm boring stuff
* Remove old stuff
* Remove old stuff
* Remove old comment
* Update nb
