[rrd-users] changing y values on an up/down graph
linux at thehobsons.co.uk
Fri Jul 27 20:01:54 CEST 2007
Eric J. Bowser wrote:
>I'd still like to graph my values in both directions from the "0" on the
>x-axis. Is this possible, or will I have to put both values going upward?
You mean you convert one set of values to negative (or collect them
that way) so that they plot down from teh X axis, but you want the
value printed in teh legend (with gprint) to be positive ?
Just modify your definitions, eg if both are positive values then :
value1=<some rrd selection>
value2=<a different rrd selection>
value2b=value2 * -1
print value1, value2
So you print the positive value2, but plot the negative value2b
derived from it.
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