相关疑难解决方法(0)

给定两个dataframes df_1和df_2如何加入他们的行列,使得datetime列df_1是介于两者之间start,并end 在数据帧df_2:

print df_1

  timestamp              A          B
0 2016-05-14 10:54:33    0.020228   0.026572
1 2016-05-14 10:54:34    0.057780   0.175499
2 2016-05-14 10:54:35    0.098808   0.620986
3 2016-05-14 10:54:36    0.158789   1.014819
4 2016-05-14 10:54:39    0.038129   2.384590


print df_2

  start                end                  event    
0 2016-05-14 10:54:31  2016-05-14 10:54:33  E1
1 2016-05-14 10:54:34  2016-05-14 10:54:37  E2
2 2016-05-14 10:54:38  2016-05-14 10:54:42  E3

获取相应的event位置和df1.timestamp之间df_2.startdf2.end

  timestamp              A          B          event
0 2016-05-14 10:54:33 …