Primitive All Reduction — prim_reduce_all • anvl

Performs logical AND along the specified axes.

Usage

prim_reduce_all(x, axes, drop = TRUE)

Arguments

x: (arrayish)
One input. Must be a boolean or an R logical.
axes: (integer())
Axes to reduce over. Negative values count from the end, i.e. -1 refers to the last axis.
drop: (logical(1))
Whether to drop the reduced axes: removed from the output shape if TRUE, set to 1 if FALSE.

Value

(arrayish)
Has the boolean data type. The shape is the input's with the reduced axes removed (drop = TRUE) or set to 1 (drop = FALSE).

Implemented Rules

stablehlo
quickr
reverse

StableHLO

Lowers to hlo_reduce(), specified under reduce. The reducer is hlo_and().

See also

nv_reduce_all()

Examples

x <- nv_matrix(c(TRUE, FALSE, TRUE, TRUE), nrow = 2)
# TRUE where every element is TRUE along axis 1
prim_reduce_all(x, axes = 1L)
#> AnvlArray
#>  0
#>  1
#> [ CPUbool{2} ] 

# drop = FALSE keeps the reduced axis at size 1 instead
prim_reduce_all(x, axes = 1L, drop = FALSE)
#> AnvlArray
#>  0 1
#> [ CPUbool{1,2} ]