Set new active group
active_group(x) <- value # S3 method for sftrack active_group(x) <- value # S3 method for sftraj active_group(x) <- value # S3 method for c_grouping active_group(x) <- value
| x | sftrack/sftraj/c_grouping/s_group object |
|---|---|
| value | character vector of the grouping names to make active |