Construct a new ndarray by repeating the elements of an input ndarray a specified number of times along each dimension.

API:

tile( x, reps )

Parameters:

• x — input ndarray
• reps — array of repetitions for each dimension

Design constraints:

• reps must have at least ndims(x) elements.
• If reps.length > ndims(x), treat x as if singleton dimensions were prepended (without actually creating a new ndarray).
• Returns a new ndarray.

Rationale for requiring reps.length >= ndims(x):

In NumPy, reps can have fewer elements than ndims(x), which makes it impossible to infer the output rank from the call site alone. By requiring reps.length >= ndims(x), the output rank is always equal to reps.length, making code easier to reason about.

Related:

• NumPy: numpy.tile
• MATLAB: repmat