[Libreoffice-bugs] [Bug 46539] sigmoid curve fitting in trend lines

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=46539

--- Comment #2 from James Salsman <jsalsman at gmail.com> 2012-02-23 14:40:49 PST ---
(In reply to comment #1)
> The current standard ODF1.2 specifies only that kind of curves, which are
> implemented already. To get new kind of regression curves a addition to the
> standard is needed. Can you write a proposal to OASIS? It need not contain the
> algorithm but a reference to the mathematical definition is needed.

Regina, I am very happy to do so, but please send me the URL to instructions if
any, or at least the sub-organization involved, and email address(es) if you
have them.

As for the mathematical definition, please see:
http://en.wikipedia.org/wiki/Logistic_function

and http://en.wikipedia.org/wiki/Gompertz_function

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