[OASIS Issue Tracker] (OFFICE-3662) chart:interpolation

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    [ https://issues.oasis-open.org/browse/OFFICE-3662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=74856#comment-74856 ] 

Regina Henschel commented on OFFICE-3662:
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Neither text nor schema contain the "step" interpolation.

> chart:interpolation
> -------------------
>
>                 Key: OFFICE-3662
>                 URL: https://issues.oasis-open.org/browse/OFFICE-3662
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: New Feature
>          Components: Chart, Part 1 (Schema)
>    Affects Versions: ODF 1.2 CD 07
>            Reporter: Andreas Guelzow
>            Assignee: Andreas Guelzow
>            Priority: Major
>
> Currently ODF 1.2 has only 3 possible values for chart:interpolation. Since some ODF implementation have a much larger selection of interpolation types (e.g. closed splines, parabolic splines, cubic csplines, clamped csplines, various step type interpolations), we should add additional ones. I propose that initially we add some step-type interpolations. 
> Step type interpolations are useful for various applications such as discrete survival curves as used in Kaplan-Meier analysis. 



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