whether circular occurrences should be in the same bin e.g. granularity = month circular: 01.2018 == 01.2017 not circular: 01.2018 != 01.2017
granularity level for the grouping
whether circular occurrences should be in the same bin e.g. granularity = month circular: 01.2018 == 01.2017 not circular: 01.2018 != 01.2017