我有: 1。
timestamp depth
1 2012-05-19 16:45:28-05 10.01
2 2012-05-19 10:45:18-05 10.01
3 2012-05-19 09:30:22-05 9.99
4 2012-05-19 09:15:21-05 9.99
5 2012-05-19 09:00:21-05 9.98
6 2012-05-19 08:45:20-05 9.99
7 2012-05-19 08:30:18-05 9.98
8 2012-05-19 08:15:19-05 9.99
9 2012-05-19 08:00:23-05 9.98
2.
d
[1] 0.75 0.75 0.77 0.77 0.78 0.77 0.78 0.77 0.78
我想加入这些并制作
timestamp depth d
1 2012-05-19 16:45:28-05 10.01 0.75
2 2012-05-19 10:45:18-05 10.01 0.75
3 2012-05-19 09:30:22-05 9.99 0.77
4 2012-05-19 09:15:21-05 9.99 0.77
5 2012-05-19 09:00:21-05 9.98 0.78
6 2012-05-19 08:45:20-05 9.99 0.77
7 2012-05-19 08:30:18-05 9.98 0.78
8 2012-05-19 08:15:19-05 9.99 0.77
9 2012-05-19 08:00:23-05 9.98 0.78
我怎么做?