yday
From lubridate v1.1.0
by Garrett Grolemund
Get/set days component of a date-time.
Date-time must be a POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, and fts objects.
Usage
yday(x)Arguments
- x
- a POSIXct, POSIXlt, Date, chron, yearmon, yearqtr, zoo, zooreg, timeDate, xts, its, ti, jul, timeSeries, or fts object.
Value
- yday returns the day of the year as a decimal number (01-366). mday returns the day of the month as a decimal number (01-31).
See Also
Examples
x <- as.Date("2009-09-02")
yday(x) #245
mday(x) #2
yday(x) <- 1 #"2009-01-01"
yday(x) <- 366 #"2010-01-01"
mday(x) > 3