| # -*- coding: utf-8 -*- | |
| """Data processing: numpy, pandas""" | |
| import numpy as np | |
| import pandas as pd | |
| # NumPy example | |
| arr = np.array([1, 2, 3, 4, 5]) | |
| print("numpy mean:", np.mean(arr)) | |
| # pandas example | |
| df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]}) | |
| print("pandas head:\n", df.head()) |