isYear | R Documentation |
Function to find out whether a vector consists of strings in the format "yXXXX" or "XXXX" with X being a number
isYear(x, with_y = TRUE)
x |
A vector |
with_y |
indicates which dataformat years have to have (4-digit without y (e.g.1984) or 5digit including y (y1984)) |
Returns a vector of the length of x with TRUE and FALSE
Benjamin Bodirsky
x <- c("1955", "y1853", "12a4")
isYear(x, with_y = TRUE)
isYear(x, with_y = FALSE)
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