[rrd-users] Calculating average when aggregating

[Stephan Harren]

Hi All,

my problem:

I need to aggregate some rrds into one graph. If I do this, the 
aggregated graph starts with the timestamp when the last rrd was started.

To get around this, i use the following RPN:

ds1,UN,0,ds1,IF

Now the graph seems to be ok, but the average is calculated for the 
whole time period. This is also a problem, because especially for the 
yearly graph, the average isn't as high as it should be (a lot of zero 
values where there should be unknowns).

Does anybody know, how I get around this ?

Best regards,

Stephan
-- 
Stephan Harren
Manager Site Operations
MFN-IS Germany
Tel 	0049 69 90554 153
Cell 
0049 173 7011126
Fax 
0049 69 90554 111

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