Derek Haynes wrote:
> > That makes sense. You will only get one value by summing a list of numbers.
>> Which leads on to ... what would you store for a SUM CF ?
>
>Instead of averaging the known values, calculate the sum. For example,
>if I have an RRD file w/1-min RRAs and I want to fetch at a 30-minute
>step (lower resolution across a large time frame), I'd be looking for
>the sum of each RRA value during each 30 minute interval.
Which you can get with :
cdef:data_sums=data_avg,${res_step},*
Where ${res_step} is the length of the consolidation interval being
used. In your example, 1800 seconds.
What might be more useful might be an option to handle unknowns
differently during consolidation.
--
Simon Hobson
Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
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