[rrd-users] Re: Re[2]: Re: Base for AREA plots

[Sergey Velikanov [UzPAK]]

> I'm not 101% sure, but if I had to guess I'd say there is a difference.

> 4-4 == 0
> Unknown-Unknown == Unknown.
> __IF__ you want to get a zero in all conditions, and if I'm right,
> then your CDEF is wrong.

yes, you are right.

BTW in this situation it doesn't matter how we define base0, using
POP or -, but if we want prevent some strange effects in the future
will be better define base0 with POP operator.

>> PS: base0=UNKN,POP,0 is better for this purpouse?
> In that case: yes.

> Alex

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