Hello, This is the continuation of OOo issue 5085: extrapolate regression lines (extend trendlines) (forward/backward forecast) http://openoffice.org/bugzilla/show_bug.cgi?id=5085 Some file format modifications are required as for bug 35712: add polynomial regression type trend line https://bugs.freedesktop.org/show_bug.cgi?id=35712 You can find on this last bug two documents presenting file format modification and a draft for user interface.
[This is an automated message.] This bug was filed before the changes to Bugzilla on 2011-10-16. Thus it started right out as NEW without ever being explicitly confirmed. The bug is changed to state NEEDINFO for this reason. To move this bug from NEEDINFO back to NEW please check if the bug still persists with the 3.5.0 beta1 or beta2 prereleases. Details on how to test the 3.5.0 beta1 can be found at: http://wiki.documentfoundation.org/QA/BugHunting_Session_3.5.0.-1 more detail on this bulk operation: http://nabble.documentfoundation.org/RFC-Operation-Spamzilla-tp3607474p3607474.html
Hello, This enhancement has not been introduced in LibO 3.5. Extension CorelPolyGUI (Improved trend lines) does not neither provide a solution: http://extensions.libreoffice.org/extension-center/improved-trend-lines
Could you please retest using LO 3.6.6 or 4.0.3 regarding some updates on extension stated in comment 2 ?
Hello Tomaž Thanks a lot for your great job :) I assigned you to this bug, as you already done the job ;) Here are some comments about Version: 4.2.0.0.alpha0+ Build ID: e703b429cf448deddc7682a33c3e6221889efe98 - Improvement: negative value for extrapolate
Hi Laurent, in the end it was you who implemented "negative value for extrapolate" and I who tested. :) Works nice in ODS, XLS and XLSX. I think this bug is fixed. Regards, Tomaž
Laurent Balland-Poirier committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=3c5dd9812b1028188b186f070874bdb6ecdcd4ba fdo#40316 Remove SpinButton in UI for extrapolate trendline The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Laurent Balland-Poirier committed a patch related to this issue. It has been pushed to "libreoffice-4-2": http://cgit.freedesktop.org/libreoffice/core/commit/?id=fefdd355b5acc465159a57ee2972d1574fc1ef49&h=libreoffice-4-2 fdo#40316 Remove SpinButton in UI for extrapolate trendline It will be available in LibreOffice 4.2. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.