assertive.properties (version 0.0-5)

assert_has_cols: Does the input have rows/columns?

Description

Checks to see if the input has rows/columns.

Usage

assert_has_cols(x, severity = getOption("assertive.severity", "stop"))
assert_has_rows(x, severity = getOption("assertive.severity", "stop"))
has_cols(x, .xname = get_name_in_parent(x))
has_rows(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

has_rows and has_cols return TRUE if nrow and ncol respectively return a value that is non-null and positive. The assert_* functions return nothing but throw an error if the corresponding has_* function returns FALSE.

See Also

ncol.

Examples

# NOT RUN {
assert_has_rows(data.frame(x = 1:10))
assert_has_cols(matrix())
# }