On Tue, 10 Jun 2008, in microsoft.public.excel.charting,
The chemistry student
said:
I will give more information. Regarding the dimensions, well, it is not
physical dimensions. It is chemical properties, melting points as a function
of carbon chain length and saturation degree. The melting points are
dependent on both chain length and saturation degree so it could be
interesting to see the connection in a 3D chart.

What are the chain lengths? Are they long or short? If short, then
you're talking about discrete integers anyway. What is the measure of
degree of saturation? Won't you give an example?

I suspect its not possible
in Excel but that I really want to do is to extract the equation from the
data sets just as one could do from a linear chart with two dimensions.

It's quite possible in Excel to get a regression in multiple unknowns,
you just have to find the fit that gives the least square deviations.

--
Del Cotter
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