difference of min- and max-value

[Sten]

Hi,

I need to get the difference of the min- and max-value (=max-min) of the printed graph. I want to give it out by using GPRINT-item. Do I have to use these CEDF's. I've tried a lot, but without any success.

Has anyone an idea ?
Thanks for your help.

Sten

[gandalf]

NP. Please create a graph template. Add the MAX ds as a first graph item. Then add the MIN ds as a second one. Now create a CDEF=a,b,-.
Last step: Add a third graph item freferring to no data source but referring to the CDEF.
That's it.
You may want to "suppress" display and scaling of MIN, MAX. To do so, apply another CDEF=CURRENT_DATA_SOURCE,0,* to both of them.
Reinhard