Class for Arbors created with
add_alias_field(alias, field[, units, force_add])
Add a field as an alias to another field.
Add an empty field to be filled by analysis operations.
add_derived_field(name, function[, units, …])
Add a field that is a function of other fields.
Return True if arrays of uids and descendent uids have been read in.
If given a string, return an array of field values for the roots of all trees.
save_arbor([filename, fields, trees, …])
Save the arbor to a file.
select_halos(criteria[, trees, select_from, …])
Select halos from the arbor based on a set of criteria given as a string.
set_selector(selector, *args, **kwargs)
Sets the tree node selector to be used.