[R] Aggregating irregular time series

Hi, I have a couple of aggregation operations that I don't know how to accomplish. Let me give an example. I have the following irregular time series time                              x 10:00:00.021                20 10:00:00.224                20 10:00:01.002                19 10:00:02:948      

[R] aggregating irregular time series

Hi, I have a couple of aggregation operations that I don't know how to accomplish. Let me give an example. I have the following irregular time series time x 10:00:00.02120 10:00:00.22420 10:00:01.00219 10:00:02:948