Given a 2-d array swap rows r and r+1, in place. Use NumPy indexing to solve this problem. No for loops, please. Have fun with it! You can solve this in one line. 47]: def np6(a, r): # YOUR CODE HERE...

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Extracted text: Given a 2-d array swap rows r and r+1, in place. Use NumPy indexing to solve this problem. No for loops, please. Have fun with it! You can solve this in one line. 47]: def np6(a, r): # YOUR CODE HERE #raise NotImplementedError() a = return a Expected output: np6( np.arange (9).reshape(3,3), 1) = array([[0, 1, 2], [6, 7, 8], [3, 4, 5]]) Use the cell below to test your function. 48]: np6( np.arange (6).reshape (3,2), 1)