[rrd-users] Re: Can CDEF be made to compute averages from 2 different data sources ?

Serge Maandag serge.maandag at staff.zeelandnet.nl
Fri Feb 27 10:45:55 MET 2004

> I've 2 different data sources from 2 separate RRD files.
> Both heartbeats are the same, and the 'step' for both RRD 
> files are the same.
> Is it possible to write a CDEF to compute the average of some of the
> samples from these 2 data sources and then graph this average value ?

Should be as simple as:

AREA:avg#0000FF:average of a and b


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