首先导入要使用的科学计算包numpy,pandas,可视化matplotlib,seaborn,以及机器学习包sklearn。

import pandas as pd

import numpy as np

import seaborn as sns

import matplotlib as mpl

import matplotlib.pyplot as plt

from IPython.display import display

plt.style.use("fivethirtyeight")

sns.set_style({'font.sans-serif':['simhei','Arial']})

%matplotlib inline

# 检查Python版本

from sys import version_info

if version_info.