我的问题是将每1分钟收集的数据汇总到5分钟的平均值.
DeviceTime Concentration
6/20/2013 11:13
6/20/2013 11:14
6/20/2013 11:15
6/20/2013 11:16
6/20/2013 11:17
6/20/2013 11:18
6/20/2013 11:19
6/20/2013 11:20
6/20/2013 11:21
6/20/2013 11:22
6/20/2013 11:23
6/20/2013 11:24
6/20/2013 11:25
6/20/2013 11:26
6/20/2013 11:27
6/20/2013 11:28
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我想要的结果是:
DeviceTime Concentration
6/20/2013 11:15
6/20/2013 11:20
6/20/2013 11:25
6/20/2013 11:30
6/20/2013 11:35
...
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5分钟的平均值只是过去五分钟内浓度的简单平均值.