Bundles of Characteristics

magnitude	Tuple containing all SFC functions on magnitude of flow events.
frequency	Tuple containing all SFC functions on frequency of flow events.
duration	Tuple containing all SFC functions on duration of flow events.
timing	Tuple containing all SFC functions on timing of flow events.
rate_change	Tuple containing all SFC functions on rate of change in flow events.
everything	Tuple containing all SFC functions.