NumericArrayQ

gives True if expr is a valid NumericArray object, and False otherwise.

requires additionally that NumericArrayType[expr] match the pattern tpatt.

NumericArrayQ[expr,tpatt,dpatt]

requires additionally that ArrayDepth[expr] match the pattern dpatt.

Examples

open allclose all

A valid NumericArray object:

An expression with head NumericArray that is not a valid byte array object:

Include a test for the type:

Check to see if the type is a real type:

Check to see if the type is either a machine integer or real type:

Include a test for the array depth:

Allow depth up to 2:

Require depth greater than or equal to 2:

Constrain both the depth and the number type:

The default conversion method will fail when the input array contains numbers that are out of range for the specified type.

Try to store in an "Integer8" numeric array:

Use the "ClipAndCoerce" method to automatically clip to the smallest "Integer8":

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