[rrd-users] Re: Forcing Y axis of graphs to autoscale with a minimum range
rader at teak.wiscnet.net
Fri Oct 15 22:15:55 MEST 1999
> *> So I'd like to set up RRD::GRAPHs so that the Y axis
> *> - ranges from zero through one when all data is < 1
> *> - ranges from zero through N when some data is > 1 (autoscale)
> *> I've played around with --lower-limit and --rigid but haven't came
> *> up with a solution.
> *> Is this possible?
> From: Tobias Oetiker
> sure but don't use lower-limit and rigid, use --upper-limit 1.0
I hadn't even considered --upper-limit: "man rrdgraph" reads
"the maximum value to be graphed". Yet if I use "--upper-limit
1.0" the "maximum value" graphed appears to be the value of the
data point with the largest value. (In other words, the graph
autoscales from 0 to N for N > 1 instead of 0 to N for N > 0.)
To a native english speaker it seems that "--upper-limit" is not
the upper limit but rather the "--minimum-upper-limit". Yuck.
Me thinks english really sucks compared to perl.
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