[rrd-users] Averaging Question

Chris Nighswonger cnighswonger at foundations.edu
Thu Mar 10 14:44:02 CET 2011

I'm wondering if this is possible with rrdtool:

I have a sensor which is logged once every 30 seconds.

I would like to produce a graph on which each point represents a 15 min
average of the sampled data.

Here is the caveat: The graph should have as many points as there are 30
second data points with each point representing the average of the previous
15 minutes worth of data points. So a sort of "running average" if you will.

I'm guessing some DEF or CDEF magic will be needed to do this.... but I'm no
statistics guru. :-)

Kind Regards,
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.oetiker.ch/pipermail/rrd-users/attachments/20110310/06ed4262/attachment.htm 

More information about the rrd-users mailing list