![]() # print fractional seconds options(cs = 6 ) This is done byįirst rounding to an instant, and then converting to the original class as per Preserve the class of the input object whenever possible. In lubridate, functions that round date-time objects try to ( POSIXct), otherwise convert to and return a Date object. If the rounding unit is smaller than a day, return the instant from step 2 Seems wrong to round a day to its lower boundary.īehavior on the boundary can be changed by setting Hasn't started clocking yet at the exact boundary 00:00:00. The motivation for this is that the "partial" is conceptuallyĪn interval ( 00:00:00 - 00:00:00) and the day If the rounding unit is month then next closest boundary of Round up to the next closest rounding unit boundary. Section Rounding Up Date Objects below for more details.īy default, rounding up Date objects follows 3 steps:Ĭonvert to an instant representing lower bound of the Date: This was the default for lubridate prior to v1.6.0. If this is FALSE, nothing on the boundary is rounded up atĪll. If this is TRUE, instants on the boundary are rounded up to the If this is NULL (the default), instants on theīoundary remain unchanged, but Date objects are rounded up to the nextīoundary. Full or abbreviated names of the days of the week can be in English or X ceiling_date() and floor_date() round to the max(x) and min(x)įor elements that fall outside of range(unit). If range of unit vector does not cover the range of When unit is a date-time object rounding is done to the nearest of theĮlements in unit. Representation and passing as unit argument. This is equivalent to converting the period object to its string When unit is a Period object, units of the period objects are Rounding to multiples of units (except weeks) Arbitrary unique English abbreviations as in the Valid base unitsĪre second, minute, hour, day, week, month, bimonth, quarter, It specifies a time unit or a multiple of a unit to be rounded to. Unit is a date-time object, return a date-time object of the same classĪ string, Period object or a date-time object. Unit is larger or equal than "day", otherwise a POSIXct object. When unit is a string, return a Date object if x is a Date and See examples.įloor_date() takes a date-time object and rounds it down to the nearestĬeiling_date() takes a date-time object and rounds it up to the nearestīoundary of the specified time unit. Please note that rounding toįractions smaller than 1 second can lead to large precision errors due to theįloating point representation of the POSIXct objects. Rounding to fractional seconds is also supported. Meaningful specifications in the English language are supported - secs, min, ![]() Rounding to the nearest unit or multiple of a unit is supported. ![]() Which "rounds to the even digit", as per IEC 60559. Is in line with the behavior of R's base::round.POSIXt() functionīut does not follow the convention of the base base::round() function For rounding date-times which are exactly halfwayīetween two consecutive units, the convention is to round up. Round_date() takes a date-time object and time unit, and rounds it to the nearest value Round_date: Round, floor and ceiling methods for date-time objects Description
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