[rrd-users] Re: Averages for graphed data

[Alex van den Bogaerdt]

Faruk Grozdanic wrote:

> I have recently converted MRTG to use RRDtool. I think it is great, way 
> better then graphing that MRTG does. One thing that I would like is to 
> find the MAX & MIN values in the data that I am graphing. When MRTG did 
> the graphs it had a couple of lines on the bottom with, let us say, in 
> bytes Max, in bytes MIN, in Bytes AVERAGE values. I do not see an option 
> for this in rrdgraph manual. If someone knows how to generate this data 
> with rrdtool graph option, it would be great.

Read the man page for rrdgraph.  It is the PRINT function, or rather
the GPRINT if you like to show it on the image itself.

GPRINT:ds0:MAX:"Max. %6.2lf"
GPRINT:ds0:AVERAGE:"Avg. %6.2lf"
GPRINT:ds0:MIN:"Min. %6.2lf"
GPRINT:ds0:LAST:"Last %6.2lf"

and so on.

HTH
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