Get names for a single axis of an array

• rray_axis_names() returns the names for a single axis of an array, or NULL if that axis has no names.

• rray_row_names() and rray_column_names() are shortcuts for rray_axis_names(x, 1) and rray_axis_names(x, 2).

Usage

rray_axis_names(x, axis)

rray_row_names(x)

rray_column_names(x)

Arguments

x

An array.

axis

The axis to get names for, given by position or by title.

Value

A character vector of names, or NULL if that axis has no names.

Examples

x <- array(1:6, c(2, 3), dimnames = list(c("r1", "r2"), c("c1", "c2", "c3")))

rray_axis_names(x, 1)
#> [1] "r1" "r2"
rray_axis_names(x, 2)
#> [1] "c1" "c2" "c3"

# By title
y <- rray_set_titles(x, c("row", "col"))
rray_axis_names(y, "col")
#> [1] "c1" "c2" "c3"

rray_row_names(x)
#> [1] "r1" "r2"
rray_column_names(x)
#> [1] "c1" "c2" "c3"