set_names

0th

Percentile

Set names of a vector

This is equivalent to stats::setNames(), with more features and stricter argument checking.

Usage
set_names(x, nm = x, ...)
Arguments
x

Vector to name.

nm, ...

Vector of names, the same length as x.

You can specify names in the following ways:

  • If you do nothing, x will be named with itself.

  • If x already has names, you can provide a function or formula to transform the existing names. In that case, ... is passed to the function.

  • If nm is NULL, the names are removed (if present).

  • In all other cases, nm and ... are passed to chr(). This gives implicit splicing semantics: you can pass character vectors or list of character vectors indistinctly.

Aliases
  • set_names
Examples
# NOT RUN {
set_names(1:4, c("a", "b", "c", "d"))
set_names(1:4, letters[1:4])
set_names(1:4, "a", "b", "c", "d")

# If the second argument is ommitted a vector is named with itself
set_names(letters[1:5])

# Alternatively you can supply a function
set_names(1:10, ~ letters[seq_along(.)])
set_names(head(mtcars), toupper)

# `...` is passed to the function:
set_names(head(mtcars), paste0, "_foo")
# }
Documentation reproduced from package rlang, version 0.1.6, License: GPL-3

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