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------- Additional comments from [EMAIL PROTECTED] Sun Nov 30 09:59:36 +0000 2008 ------- Hello, I am looking for help about user experience with polynomial regression curve. As said previously by Ingrid, we need file format modification prior been able to solve this issue. Please join graphics mailing list to discuss about what is needed. A first draft has been written for a file format change in ODF, in order to be able to add polynomial regression curve. It is obvious that asking a file format change only for polynomial regression curve is unproductive. That's why the proposition include other important issues for regression curve: - moving average trend line (issue 66819) - force intercept (issue 34093) - extrapolate (issue 5085) Do you see some other features that are missing to trend lines? I made the comparison with MS-Excel only, but other spreadsheets may have interesting features. We need argument to obtain file format modification. Since how long do other spreadsheets have polynomial trend lines? Which concrete applications do you have with polynomial trend line, not only in maths and physics? ... With this four first features, there are things that should be discussed before asking to OASIS TC a file format change: - polynomial trend line: exponential terms is an option, but is it necessary? - moving average trend line: by default it is prior moving average. What about adding central moving average? Is it necessary, or will there be too many parameters, most of them useless? Many thanks in advance for your answers on graphics mailing list. --------------------------------------------------------------------- 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
