Diagonal Matrix

Creates a diagonal matrix from a 1-D array.

Usage

nv_diag(x)

Arguments

x

(arrayish)
One input, a 1-D array of length n whose elements become the diagonal entries. Can be any data type. An R value materializes at its default data type.

Value

(arrayish)
Has the input's data type and shape (n, n), with the input on the diagonal and zeros elsewhere.

Examples

# the vector becomes the diagonal of a 3x3 matrix
nv_diag(nv_array(c(1, 2, 3)))
#> AnvlArray
#>  1 0 0
#>  0 2 0
#>  0 0 3
#> [ CPUf32{3,3} ]