[rrd-users] Data Averaging

Huot, Caroline CHuot at NRCan.gc.ca
Wed Feb 16 15:04:49 MET 2005

> Dear users,
> I am graphing temperature data every 15 minutes and the data looks fine 
> when I plot 6 days of data, but if I graph 7 days or more data, the values
> are being averared out.For example, in the first graph (6 days), I have a 
> temp. value of +1.0 on the graph.When I expand the graph to 7 days, 
> this +1.0 value changed to -5.  I know this is due to the AVERAGE but
> is there a way to get the real value and not an average ?
> I've created my RRD with these parameters:
> Create RRD database for 1 value per 15min for 4 years:
> XFF=0.5
> RRAS=RRA:AVERAGE:0.5:1:140160
> STEP=900
> DS:Press:GAUGE:900:U:U
> DS:temp:GAUGE:900:U:U
> DS:Hum:GAUGE:900:U:U
> the start and end time of the graph vary depending on the user's input 
> and my DEF has the AVERAGE consolidated function.
> Thanks for your help,
> Caroline Huot

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