powered by
Checks if an object is named.
has_names(x, names = NULL)has_rownames(x, names = NULL)has_colnames(x, names = NULL)
has_rownames(x, names = NULL)
has_colnames(x, names = NULL)
A logical scalar.
logical
A vector to be tested.
vector
A character vector specifying the names to test x with. If NULL, returns TRUE if x has names, and FALSE otherwise.
character
x
NULL
TRUE
FALSE
Other predicates: is_scalar, predicate-attributes, predicate-data, predicate-matrix, predicate-numeric, predicate-trend, predicate-type
is_scalar
predicate-attributes
predicate-data
predicate-matrix
predicate-numeric
predicate-trend
predicate-type