导入一个时间相关的数据集
import numpy as np
import pandas as pd
## importing a dataset
url="http://mlr.cs.umass.edu/ml/machine-learning-databases/event-detection/CalIt2.data"
data = pd.read_csv(url, header = None)
查看数据的属性
>>> data.head(3)
0 1 2 3
0 7 07/