axis : int, optionalThe axis along which the arrays will be joined. If axis is None, arrays are flattened before use. Default is 0. axis=0 It concatenates along the row axis. a = np.array([[1, 2], [3, 4]]) b = np.array([[5, 6]]) np.concatenate((a, b), axis=0) >>> array([[1, 2], [3, 4], [5, 6]]) axis=1 It concatenates along the column axis. np.concatenate((a, b), axis=1) >>> ValueError: all the i..
