3 examples of 'numpy create empty array' in Python

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def create_array():
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    """Creates a simple 3D numpy array with unique values at each
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    location in the matrix.
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    """
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    rows, cols, depth = 2, 3, 4
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    arr = numpy.zeros((rows, cols, depth), 'i')
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    count = 0
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    for i in range(rows):
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        for j in range(cols):
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            for k in range(depth):
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                arr[i,j,k] = count
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                count += 1
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    return arr

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def create_from_numpy(self, arr):
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    return gpuarray.to_gpu(arr.astype(self.dtype))

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def create_empty_arrays():
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	oneD_empty = np.empty(5)
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	twoD_empty = np.empty((5,4))
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	threeD_empty = np.empty((5,4,3))
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	print('1D array')
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	print(oneD_empty)
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	print('2D array')
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	print(twoD_empty)
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	print('3D array')
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	print(threeD_empty)