Number of Dimensions

Gets the number of dimensions of an object as returned by dims().

The default methods returns the length of dims().

ndims(x, ...)

# S3 method for default
ndims(x, ...)

# S3 method for matrix
ndims(x, ...)

# S3 method for data.frame
ndims(x, ...)

Arguments

x

An object.

...

Other arguments passed to methods.

Value

A integer scalar of the number of dimensions.

Details

For matrices ndims() is always 2L.

For data frames ndims() is always 2L.

See also

Other dimensions: dims(), npdims(), pdims()

Examples

ndims(character(0))
#> [1] 1
ndims(1:3)
#> [1] 1
ndims(matrix(1))
#> [1] 2
ndims(data.frame())
#> [1] 2
ndims(array(1:9, dim = c(3,1,3)))
#> [1] 3