Shift a Positions Object
Returns a positions object similar to the input but shifted in time.
a vector or timeDate object.
Missing values (NAs) are allowed.
the number of positions the input series is to shift for the new series.
If k is a non-integer value, it is rounded to the nearest integer before the shift is applied.
- If k is a positive value, the resulting series is shifted forwards in time.
- If k is a negative value, the resulting series is shifted backwards in time.
returns a vector or timeDate object with
the positions shifted by k steps.
x <- as(1:10, "timeDate")