doy: Day of Year
In JVAdams/jvamisc: A Collection of Utility Functions

Calculates the day of the year.

1	doy(date, day1 = "01-01")

`date`	A vector of dates to be converted.
`day1`	A character scalar specifying what date should equate to day 1, use "01-01", the default, to get the Julian day.

A numeric vector the same length as date giving the day of the year.

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2
3

x <- as.Date(c("1963-01-15", "1972-07-20", "1999-03-10"))
doy(x)
doy(x, "03-01")

JVAdams/jvamisc documentation built on Aug. 11, 2021, 6:43 a.m.

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