assert_has_cols

Does the input have rows/columns?

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.

Aliases
  • assert_has_cols
  • assert_has_rows
  • has_cols
  • has_rows
Examples
library(assertive.properties) assert_has_rows(data.frame(x = 1:10)) assert_has_cols(matrix())
Documentation reproduced from package assertive.properties, version 0.0-4, License: GPL (>= 3)

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