Array-Like Objects

An arrayish value is anything that represents an AnvlArray or can be converted to one.

Specifically, these values are arrayish:

• AnvlArray: a concrete array holding data on a device.

• GraphBox: the representation of an array during tracing, e.g. inside a jit()ted function.

• R objects:

  • numeric(1) and logical(1) which represent scalars.

  • numeric and logical R arrays.

Use is_arrayish() to check whether a value is arrayish.

Usage

is_arrayish(x, convert_ok = TRUE)

Arguments

x

(any)
Object to check.

convert_ok

(logical(1))
Whether to accept numeric(1) and logical(1) and R arrays of type numeric and logical.

Value

(logical(1))
Whether x is arrayish.

See also

AnvlArray, GraphBox

Examples

# AnvlArray objects are arrayish
is_arrayish(nv_array(1:4))
#> [1] TRUE

# R arrays and literals are arrayish by default
is_arrayish(array(1:4), convert_ok = TRUE)
#> [1] TRUE
is_arrayish(array(1:4), convert_ok = FALSE)
#> [1] FALSE

# length 1 vectors
is_arrayish(1.5, convert_ok = FALSE)
#> [1] FALSE
is_arrayish(1.5, convert_ok = TRUE)
#> [1] TRUE