isYear — isYear • magclass

Function to find out whether a vector consists of strings in the format "yXXXX" or "XXXX" with X being a number

Usage

isYear(x, with_y = TRUE)

Arguments

x: A vector
with_y: indicates which dataformat years have to have (4-digit without y (e.g.1984) or 5digit including y (y1984))

Value

Returns a vector of the length of x with TRUE and FALSE

See also

Other ObjectInfo: dimExists(), fulldim(), hasCoords(), hasSets(), is.temporal(), ncells(), ndim(), sameDims()

Author

Benjamin Bodirsky

Examples


x <- c("1955", "y1853", "12a4")
isYear(x, with_y = TRUE)
#> [1] FALSE  TRUE FALSE
isYear(x, with_y = FALSE)
#> [1]  TRUE FALSE FALSE