assert_is_zero_matrix

From assertive.matrices v0.0-2 by Richard Cotton

Is the input a zero matrix

Checks that the input is a matrix of zeroes.

Usage

assert_is_zero_matrix(x, tol = 100 * .Machine$double.eps,
  severity = getOption("assertive.severity", "stop"))
is_zero_matrix(x, tol = 100 * .Machine$double.eps,
  .xname = get_name_in_parent(x))

Arguments

x: Input to check.
tol: Absolute values smaller than tol are not considered.
severity: How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
.xname: Not intended to be used directly.

Value

TRUE if the input is all zeroes (after coercion to be a matrix).

Examples

# NOT RUN {
x <- matrix(numeric(9), 3)
is_zero_matrix(x)
x[1, 1] <- 100 * .Machine$double.eps
is_zero_matrix(x)
x[2, 2] <- 101 * .Machine$double.eps
is_zero_matrix(x)
# }

Documentation reproduced from package assertive.matrices, version 0.0-2, License: GPL (>= 3)

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