tidytable (version 0.8.0)

first.: Extract the first, last, or nth value from a vector

Description

Extract the first, last, or nth value from a vector.

Note: These are simple wrappers around vctrs::vec_slice().

Usage

first.(x, default = NA, na_rm = FALSE)
last.(x, default = NA, na_rm = FALSE)
nth.(x, n, default = NA, na_rm = FALSE)

Arguments

x

A vector

default

The default value if the value doesn't exist.

na_rm

If TRUE ignores missing values.

n

For nth.(), a number specifying the position to grab.

Examples

vec <- letters

first.(vec)
last.(vec)
nth.(vec, 4)