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 |
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value | character vector of the grouping names to make active |