Tobias Oetiker wrote: >you can always 'convert' the unknowns to zero first using an >appropriate CDEF
Does that work when the data has been consolidated ? Eg, suppose you have 10, 10, 10, ... unknown, 10, and consolidate 10 values (9x 10, 1x unknown) into one CDP. Do you get 10 (average of the 9 known values) or 9 (average of the known values and assuming 0 for the missing one) ? The problem is that by the time you come to graph the data, you only have the consolidated average to work with, and 10 would give the wrong answer - as could 9, it depends on your requirements. If the missing data is because we've had the power off, and so had a step period where nothing happens, we'd expect to have done/moved 90 <somethings> during the consolidation period, not 100. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
