| gap_window | [offset string](docs/ParameterDescriptions.md#offset-strings) | | The minimum size of the gap before and after a group of valid values, to consider the group as isolated, see condition (2) and (3) |
| group_window | [offset string](docs/ParameterDescriptions.md#offset-strings) | | The maximum size of an isolated group, see condition (1). |
| gap_window | [offset string](docs/ParameterDescriptions.md#offset-strings) | | The minimum size of the gap before and after a group of valid values, which makes this group considered as isolated. See condition (2) and (3) |
| group_window | [offset string](docs/ParameterDescriptions.md#offset-strings) | | The maximum size of an isolated group of valid data. See condition (1). |
The function flags arbitrary large groups of values, if they are surrounded by sufficiently
large data gaps. A gap is defined as group of missing and/or flagged values.