我正在尝试制作一个iPython笔记本,用于绘制两个日期时间点之间的所有数据。我已经完成了大部分工作,我只需要这样做,这样我就可以选择开始日期和结束日期。该程序的工作是将所有数据存储到变量中。
这是一段数据(请记住,我有240,000个数据点)
[datetime.datetime(2014, 6, 27, 17, 40, 55), datetime.datetime(2014,
6, 27, 17, 40, 56), datetime.datetime(2014, 6, 27, 17, 40, 57),
datetime.datetime(2014, 6, 27, 17, 40, 58), datetime.datetime(2014, 6,
27, 17, 40, 59), datetime.datetime(2014, 6, 27, 17, 41),
datetime.datetime(2014, 6, 27, 17, 41, 1), datetime.datetime(2014, 6,
27, 17, 41, 2), datetime.datetime(2014, 6, 27, 17, 41, 3),
datetime.datetime(2014, 6, 27, 17, 41, 4), datetime.datetime(2014, 6,
27, 17, 41, 5), datetime.datetime(2014, 6, 27, 17, 41, 6),
datetime.datetime(2014, 6, 27, 17, 41, 7), datetime.datetime(2014, 6,
27, 17, 41, 8), datetime.datetime(2014, 6, 27, 17, 41, 9),
datetime.datetime(2014, 6, 27, 17, 41, 10), datetime.datetime(2014, 6,
27, 17, 41, 11), datetime.datetime(2014, 6, 27, 17, 41, 12)]
大部分格式化(年,月,日,24小时,分钟,秒)。
我怎样才能做到:
startYear = 2014
startMonth = 6
startDay = 27
startHour = 17
startMinute = 40
startSecond = 55
endYear = 2014
endMonth = 6
endDay = 28
endHour = 17
endMinute = 40
endSecond = 55
我在数据块上使用date2num,我认为在所需日期使用date2num只会交叉搜索相同的数字。我只需要最终结果如下:
BetweenTime = (StartTime):(EndTime)
这样我就可以将BetweenTime插入到我的图表中。
感谢任何帮助,我对Python来说相对较新。
答案 0 :(得分:1)
日期时间对象具有可比性(请参阅https://docs.python.org/2/library/datetime.html#datetime.datetime.date中的“datetime1< datetime2比较日期时间与日期时间。(4)”),以便您可以这样做:
sDate = datetime(starYear,...,startSecond) #fill this in
eDate = datetime(endYear,...,endSecond) #fill this in
for i in data:
if i >= sDate and i <= eDate:
#DO SOMETHING WITH i IT SHOULD BE INCLUDED