Resolves at argument passed to the runner (k or lag)
checks if the argument has a valid value. If argument is a single character
matching column name in the x then is replaced with the value x[[idx]]
.check_unresolved_difftime(x, k)resolved idx
(data.frame)
(integer vector or single value)
Denoting size of the running window. If k is a single value then window
size is constant for all elements, otherwise if length(k) == length(x)
different window size for each element. One can also specify k in the same
way as by argument in base::seq.POSIXt().
See 'Specifying time-intervals' in details section.