pandas 给时间划分区间有几种相似的方式
1.period_range
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.period_range.html
2. pandas Grouper 按时间采样分组,参数和resample类似
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Grouper.html
3.resample 和groupby 类似
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.resample.html
closed{‘right’, ‘left’}, default None
Which side of bin interval is closed. The default is ‘left’ for all frequency offsets except for ‘M’, ‘A’, ‘Q’, ‘BM’, ‘BA’, ‘BQ’, and ‘W’ which all have a defa