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------- Additional comments from hedleyro...@openoffice.org Sun Sep 13 14:15:11 +0000 2009 ------- hephooey wrote: "polynomial regression you need more than 2, and you cannot determine the maximum parameters you need theoretically" Maybe I'm misunderstanding what you wrote? My understanding is that generally the user defines the order of fit that is required, so the number of parameters should be fixed at that point. Maybe this is the reason that EXCEL (*$£%&) only allows orders up to 6? BTW, my personal preference is an orthogonally-generated Chebyshev fit (see for example http://mathworld.wolfram.com/ChebyshevPolynomialoftheFirstKind.html equation 24). This has the potential advantage that adding an order would not change the values in previous orders, so these can be generated one-at-a-time if required (i.e. only one output variable per order). --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@graphics.openoffice.org For additional commands, e-mail: issues-h...@graphics.openoffice.org --------------------------------------------------------------------- To unsubscribe, e-mail: allbugs-unsubscr...@openoffice.org For additional commands, e-mail: allbugs-h...@openoffice.org
