pandas日期类型差值timedelta大于等于7天
p_eci_cross['create_date']=pd.to_datetime(p_eci_cross['create_date'])
p_eci_cross_viot=p_eci_cross.groupby(['cell_identification']).agg(日期最大值=('create_date','max'),日期最小值=('create_date','min'))
p_eci_cross_viot=p_eci_cross_viot.reset_index()
p_eci_cross_viot['日期差']=p_eci_cross_viot['日期最大值']-p_eci_cross_viot['日期最小值']
print(f'p_eci_cross_viot{p_eci_cross_viot.dtypes}')
#p_eci_cross_viot=p_eci_cross_viot[p_eci_cross_viot['日期差']>=pd.DateOffset(days=7)]
td = pd.to_timedelta('7 days')
p_eci_cross_viot = p_eci_cross_viot[p_eci_cross_viot['日期差'] >=td]
