[rrd-users] Re: Forcing Y axis of graphs to autoscale with a minimum range

Tobias Oetiker oetiker at ee.ethz.ch
Sat Oct 16 00:40:21 MEST 1999


Yesterday you sent me mail regarding Re: [rrd-users] Re: Forcing Y axis of...:

*>  > *> 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
*> 
*> Ahh, okay.
*> 
*> 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.

:-) as usual a patch for the manpage will be greatly apreciated :-)

cheers
tobi
*> 
*> later
*> steve
*> - - -
*> systems guy
*> wiscnet.net
*> 

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