check_named_list: Check that a list is named

In edwardlavender/prettyGraphics: Pretty Graphics with R

Check that a list is named

Description

This function checks that the top level of a list is named (ignoring empty lists if requested). If the list is not named, the function returns a helpful error message. Otherwise, the list is returned unchanged. This is particularly useful within functions that use do.call to evaluate lists of arguments.

Usage

check_named_list(arg = NULL, l, ignore_empty = TRUE)

Arguments

arg	(optional) A character string which defines the argument of a parent function.
l	A list.
ignore_empty	A logical input which defines whether or not to ignore empty lists.

Value

The function returns a helpful error message for unnamed lists (ignoring empty lists if requested) or the inputted list unchanged.

Author(s)

Edward Lavender

edwardlavender/prettyGraphics documentation built on Jan. 19, 2025, 2:47 p.m.