[rrd-users] Combining Multi-RRD Datapoints in Graph

William R. Lorenz wrl at express.org
Fri Feb 13 14:19:59 CET 2009


I'm looking to take 2-4 unique RRD files that plot the same data from 
different perspectives (i.e. temperature readings from four different 
sensors) and average all the data points together into one graph line.

Is there a CDEF, VDEF, or other such function that will allow me to 
average more than one data source together for this rrdgraph purpose?

If someone could point me to the applicable section of documentation 
and/or has an example, I'd be very appreciative.  Thanks, in advance.

William R. Lorenz

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