unit_group

sisl.unit.unit_group(unit, tbl=None)

The group of units that unit belong to

Parameters

unitstr

unit, e.g. kg, Ang, eV etc. returns the type of unit it is.

tbldict, optional

dictionary of units (default to the global table)

Examples

>>> unit_group('kg')
'mass'
>>> unit_group('eV')
'energy'