R: Check that a list contains only elements of a required type.

checkListElementClass {BBmisc}

R Documentation

Check that a list contains only elements of a required type.

Description

Check that argument is a list and contains only elements of a required type. Throws exception if check is not passed. Note that argument is evaluated when checked.

Usage

checkListElementClass(xs, cl)

Arguments

`xs`	[`list`] Argument.
`cl`	[`character(1)`] Class that elements must have. Checked with `is`.

Value

Nothing.

Examples

xs = as.list(1:3)
checkListElementClass(xs, "numeric")

[Package BBmisc version 1.7 Index]