clone activity replicates an arrival
n times (the original
n-1 copies). A
synchronize activity removes all but one clone.
clone(.trj, n, ...) synchronize(.trj, wait = TRUE, mon_all = FALSE)
FALSE, all clones but the first to arrive are removed. if
TRUE(default), all clones but the last to arrive are removed.
get_mon_arrivalswill show one line per clone.
Returns the trajectory object.