This function converts from real times/dates to numeric times (0, 1, 2, ...)
Arguments
- x
a data frame containing a "time" column, or a list containing such data frames
- origin
the time origin, i.e. the date or time corresponding to time 0
- unit
the unit of time that each time step corresponds to; this must be a unit understood by
lubridate::period, optionally with a number in advance, e.g. "day" or "2 weeks" or "3 seconds"