Merge data by time stamp
I need to merge two different data sets. The first, A, has data collected every 2 minutes. The second, B, has data collected only when a measurement crossed a threshhold. A-sample2017-01-21:00:02:00, 1, 2, 3, 42017-01-21:00:04:00, 2, 3, 4, 52017-01-21:00:06:00, 3, 4, 5, 6...B-sample2017-01-21:00:02:05, 45002017-01-21:00:05:14, 5700...It will be sufficient to put B data into the nearest A row. For...