dates: date manipulation

In meteor: Meteorological Data Manipulation

Description

Helper functions for manipulation of dates, includding conversion between (day of year) (DOY) to date and back, and extraction of parts of a date.

Usage

dateFromDoy(doy, year)
doyFromDate(date)
dayFromDate(date)
monthFromDate(date)
yearFromDate(date)
isLeapYear(year)
daysInYear(year)

Arguments

doy	integer. Day of the year (1..365) or (1..366) for leap years
year	integer. Year, e.g. 1982
date	Date object or character formatted 'yyyy-mm-dd', e.g. '1982-11-23'

Value

integer or Date

Examples

doy <- 88
year <- 1970
date <- dateFromDoy(doy, year)
date
dateFromDoy(-15, 2000)
doyFromDate(date)
isLeapYear(2000)
daysInYear(2000)
daysInYear(1999)

Example output

[1] "1970-03-29"
[1] "1999-12-16"
[1] 88
[1] TRUE
[1] 366
[1] 365

meteor documentation built on May 2, 2019, 4:52 p.m.