ult: Extract or replace the *ult*imate (last) element of a vector...

In RDS: Respondent-Driven Sampling

Extract or replace the *ult*imate (last) element of a vector or a list, or an element counting from the end.

Description

Extract or replace the *ult*imate (last) element of a vector or a list, or an element counting from the end.

Usage

ult(x, i = 1L)

Arguments

x	a vector or a list.
i	index from the end of the list to extract or replace (where 1 is the last element, 2 is the penultimate element, etc.).

Value

An element of 'x'.

Examples

x <- 1:5
(last <- ult(x))
(penultimate <- ult(x, 2)) # 2nd last.

RDS documentation built on Aug. 20, 2023, 9:06 a.m.