Has or lacks row/column names?

has_rownames tests if an object has row names
has_colnames tests if an object has column names
has_dimnames tests if an object has dimnames
lacks_rownames tests if an object lacks row names
lacks_colnames tests if an object lacks column names
lacks_dimnames tests if an object lacks dimnames

has_rownames(x)

Arguments

x

an R object

See also

has_names

Examples

has_rownames(iris) # TRUE
#> [1] TRUE
has_colnames(iris) # TRUE
#> [1] TRUE

lacks_rownames(letters[1:10]) # TRUE
#> [1] TRUE
lacks_colnames(letters[1:10]) # TRUE
#> [1] TRUE

A = matrix(1:10)
has_dimnames(A) # FALSE
#> [1] FALSE
lacks_dimnames(A) # TRUE
#> [1] TRUE