is_qr: Is the input a QR decomposition of a matrix?

In assertive.types: Assertions to Check Types of Variables

Description

Checks to see if the input is a QR decomposition of a matrix.

Usage

assert_is_qr(x, severity = getOption("assertive.severity", "stop"))

is_qr(x, .xname = get_name_in_parent(x))

Arguments

x	Input to check.
severity	How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
.xname	Not intended to be used directly.

Value

is_qr wraps is.qr, providing more information on failure. assert_is_qr returns nothing but throws an error if is_qr returns FALSE.

See Also

is.qr.

Examples

assert_is_qr(qr(matrix(rnorm(25), nrow = 5)))

assertive.types documentation built on May 1, 2019, 10:31 p.m.