[rrd-users] Graph question - multiple graphs from same DS

[David Gabler]

All,

To give some background,  I use rrdtool to store relative humidity data.
This past weekend I moved my sensor to a new location.  Now I want to see
how the sensor compares in this new position to others.

Is there a way to graph four sets of data, each set from the same DS in the
same RRD but from different times?  e.g. graph the first 24 hours from ds0
of the past four months in the same graph.  

I figure I can do this if I do dump,  pull the data from the dump I want to
graph, turn to proper xml format,  restore the data to a rrd and then graph
4 diff DS's.  

Just curious if there is an easier way.

David


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