| import numpy as np | |
| import pytest | |
| from pandas import ( | |
| DataFrame, | |
| to_datetime, | |
| ) | |
| def hist_df(): | |
| n = 100 | |
| np_random = np.random.RandomState(42) | |
| gender = np_random.choice(["Male", "Female"], size=n) | |
| classroom = np_random.choice(["A", "B", "C"], size=n) | |
| hist_df = DataFrame( | |
| { | |
| "gender": gender, | |
| "classroom": classroom, | |
| "height": np.random.normal(66, 4, size=n), | |
| "weight": np.random.normal(161, 32, size=n), | |
| "category": np.random.randint(4, size=n), | |
| "datetime": to_datetime( | |
| np.random.randint( | |
| 812419200000000000, | |
| 819331200000000000, | |
| size=n, | |
| dtype=np.int64, | |
| ) | |
| ), | |
| } | |
| ) | |
| return hist_df | |