You can only fit a polynomial trendline to an X-Y scattergraph. They really
should incorporate an error message when you try to fit it to any other type
of graph. Hope this helps.

P. Williams

"jlsexcel" wrote:


Hello,

need help.

I created trendlines in excel using polynomial curves. They look pretty
good, but the equations supplied are way off. Can somebody help me.
Using a second order poly gave the best results but still way off.

thanks.


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