parents_of_children: parents_of_children
In epi-sam/SamsElves: Helper functions for the data science at IHME

parents_of_children

R Documentation

parents_of_children

Given a vector of location IDs, returns the vector of their unique parent IDs at a given level.

parents_of_children(child_loc_ids, hierarchy, parent_level)

`child_loc_ids`	[int] Vector of location IDs to pull parent ID for
`hierarchy`	[data.table] Hierarchy. Must have columns location_id, path_to_top_parent, and level.
`parent_level`	[int] Single level of the hierarchy - find all parent location_ids of child location_ids at this level