python - 减去下一行使用当前行，python 数据框

Question

我在 python 中有这个 Pandas Dataframe，我想知道两行之间的时间差，下一行减去上一行，我应该如何处理这个问题？

已审核[x] - 已审核[x-1] x 是该行所在位置的编号

   ReporterID        ID      Type                   Reviewed
0     27545252  51884791  ReportID 2015-01-14 00:00:42.640000
1     29044639  51884792  ReportID 2015-01-14 00:00:02.767000
2     29044639  51884793  ReportID 2015-01-14 00:00:28.173000
3     29044639  51884794  ReportID 2015-01-14 00:00:46.300000
4     27545252  51884796  ReportID 2015-01-14 00:01:54.293000
5     29044639  51884797  ReportID 2015-01-14 00:01:17.400000
6     29044639  51884798  ReportID 2015-01-14 00:01:57.600000

Answer 1

假设您的Reviewed 列是您可以执行的日期时间:

df.ix[4, 'Reviewed'] - df.ix[3, 'Reviewed']

如果您想一次对所有行执行此操作:

df['Reviewed'] - df['Reviewed'].shift()