fill_run                Fill NA with previous non-NA element
k_by                    Converts k and lag from time-unit-interval to
                        int
lag_run                 Lag dependent on variable
length_run              Length of running windows
max_run                 Running maximum
mean_run                Running mean
min_run                 Running minimum
minmax_run              Running min/max
reformat_k              Formats time-unit-interval to valid for runner
run_by                  Set window parameters
runner                  Apply running function
seq_at                  Creates sequence for at as time-unit-interval
streak_run              Running streak length
sum_run                 Running sum
this_group              Access group data in mutate
which_run               Running which
window_run              List of running windows
