[rrd-developers] Re: stacking and the *UNKNOWN*

[Tobias Oetiker]

Today you sent me mail regarding [rrd-developers] Re: stacking and the...:

*> Alex -
*> 
*> You have stumbled into exactly the same issue I did a couple of months
*> ago when I built an application to allow my users to define aggregate
*> graphs.  They are quite similar to your stacks, but use area and line
*> instead.  The universal issue here is how to handle the unknown value
*> which I finally did by using the CDEF function to map unknown values
*> into 0.  Check out Example 2 in the documentation for RRD Graph - this
*> shows exactly what you are trying to do:

I hear application .... is it available ? visible ?

cheers
tobi

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