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speedily converting years to POSIXct values

Source: R/ISOyear.R
ISOyear.Rd

Converts integer years (e.g. 2023) to lubridate::POSIXct date/time values (e.g. 2023-07-02 12:00:00 GMT) corresponding to July 2, noon, which is the middle of the (non-leap) year. The function keeps a cache of already converted values, as the underlying function ISOdate() is rather slow.

Usage

ISOyear(year)

Arguments

year

Vector of years to convert to lubridate::POSIXct.

Value

A vector of lubridate::POSIXct values.

Author

Michaja Pehl

Examples

ISOyear(c(2005, 2010, 2100, 1900))
#> [1] "2005-07-02 12:00:00 GMT" "2010-07-02 12:00:00 GMT"
#> [3] "2100-07-02 12:00:00 GMT" "1900-07-02 12:00:00 GMT"