How can I calculate a graph where:
For each point plotted on the graph, the y-axis is a count of the number of distinct values of a certain field in the last 5 minutes.
So if I had an log like this:
hh mm ss
00:00:30 myfield = 'A'
00:01:30 myfield = 'B'
00:02:30 myfield = 'C'
00:03:30 myfield = 'D'
00:04:30 myfield = 'C'
00:05:30 myfield = 'D'
00:06:30 myfield = 'C'
I'd like an output like this (only the counts, not the letters)
00:01:00 => 1 (A)
00:02:00 => 2 (A and B)
00:03:00 => 3 (A, B, C)
00:04:00 => 4 (A, B, C, D)
00:05:00 => 4 (A, B, C, D)
00:06:00 => 3 (B, C, D)
00:07:00 => 2 (C, D)
Is this possible with "concurrency?"
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