[rrd-users] Using absolute numbers

[Brian Ipsen]

Hi!

 I consider using rrd to gather information about new articles on a NNTP
server in different groups. But if I store values as absolute values (not
the difference between 2 measurements), is it then possible to graph the
differences in the measurements ?? Eg.

1st measurement: 23102
2nd measurement: 23263
3rd measurement: 23421
4th measurement: 23643

The value displayed should then be:

0 - 161 - 158 - 222

Possible ? Or do I have to store the last-measured values myself to
calculate the difference and then store the calculated value in the database
?

Regards,

/Brian



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