Re: Constrain a polynomial trend line to intercept y-axis horizontally

[Jean Bréfort <jean brefort free fr>]

It is not directly possible, but you can evaluate such a regression in
the sheet, usin x^2, x^3, and so on as independent data in the linest
function.

Regards,
Jean

Le vendredi 14 juin 2013 à 03:58 -0700, Mike Simms a écrit :
> I'm used to using the polynomial trendlines to fit data. Now I have to do the
> same but to constrain the polynomial to intercept the y-axis horizontally. A
> low order polynomial usually does give slope of nearly zero at the x axis,
> will will probably do, but is there an explicit way for getting gnumeric to
> enforce it?
>
>
>
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