[rrd-users] Re: Cumulative totals

Hi Ollie,

> CDEF:TotalReg=TotalReg,PREV(Registrations2007),+

Hehe, thats funny, i tried doing the same some time ago
and i was helped here on the list by Alex ..
the problem of calculating a "total"-sum is just the first
data - imagine to try to get a "PREV"-Value out of a source
that just startet - there would be an Unknown-value and
thats why all calculations would lead to a unclear value.

Try this:
CDEF:TotalReg=PREV,UN,0,PREV,IF,Registrations2007, +


Cu Rene.





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