Array Manipulation Routines

Basic operations

cupy.copyto	Copies values from one array to another with broadcasting.
cupy.shape	Returns the shape of an array

Changing array shape

cupy.reshape	Returns an array with new shape and same elements.
cupy.ravel	Returns a flattened array.

Transpose-like operations

cupy.moveaxis	Moves axes of an array to new positions.
cupy.rollaxis	Moves the specified axis backwards to the given place.
cupy.swapaxes	Swaps the two axes.
cupy.transpose	Permutes the dimensions of an array.

See also

cupy.ndarray.T

Changing number of dimensions

cupy.atleast_1d	Converts arrays to arrays with dimensions >= 1.
cupy.atleast_2d	Converts arrays to arrays with dimensions >= 2.
cupy.atleast_3d	Converts arrays to arrays with dimensions >= 3.
cupy.broadcast	Object that performs broadcasting.
cupy.broadcast_to	Broadcast an array to a given shape.
cupy.broadcast_arrays	Broadcasts given arrays.
cupy.expand_dims	Expands given arrays.
cupy.squeeze	Removes size-one axes from the shape of an array.

Changing kind of array

cupy.asarray	Converts an object to array.
cupy.asanyarray	Converts an object to array.
cupy.asfortranarray	Return an array laid out in Fortran order in memory.
cupy.ascontiguousarray	Returns a C-contiguous array.
cupy.require	Return an array which satisfies the requirements.

Joining arrays

cupy.concatenate	Joins arrays along an axis.
cupy.stack	Stacks arrays along a new axis.
cupy.column_stack	Stacks 1-D and 2-D arrays as columns into a 2-D array.
cupy.dstack	Stacks arrays along the third axis.
cupy.hstack	Stacks arrays horizontally.
cupy.vstack	Stacks arrays vertically.

Splitting arrays

cupy.split	Splits an array into multiple sub arrays along a given axis.
cupy.array_split	Splits an array into multiple sub arrays along a given axis.
cupy.dsplit	Splits an array into multiple sub arrays along the third axis.
cupy.hsplit	Splits an array into multiple sub arrays horizontally.
cupy.vsplit	Splits an array into multiple sub arrays along the first axis.

Tiling arrays

cupy.tile	Construct an array by repeating A the number of times given by reps.
cupy.repeat	Repeat arrays along an axis.

Adding and removing elements

cupy.unique	Find the unique elements of an array.
cupy.trim_zeros	Trim the leading and/or trailing zeros from a 1-D array or sequence.

Rearranging elements

cupy.flip	Reverse the order of elements in an array along the given axis.
cupy.fliplr	Flip array in the left/right direction.
cupy.flipud	Flip array in the up/down direction.
cupy.reshape	Returns an array with new shape and same elements.
cupy.roll	Roll array elements along a given axis.
cupy.rot90	Rotate an array by 90 degrees in the plane specified by axes.