减去下一行使用当前行,python 数据帧

Subtract next row use current row, python dataframe

我在 python 中有这个 Pandas 数据框,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?

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

假设您的 Reviewed 列是日期时间,您可以这样做:

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()