[ http://tools.oasis-open.org/issues/browse/OFFICE-2630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18370#action_18370 ]
Andreas Guelzow commented on OFFICE-2630:
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I have no idea what would be correct.
For
=YEARFRAC(DATE(2007;2;1);DATE(2008;3;1);1)
Gnumeric and Excel 2007 yield 1.07797537619699
OOo 3.0 yields 1.07945205479452
and I would have expected 1.07900291938019.
> YEARFRAC ambiguity
> ------------------
>
> Key: OFFICE-2630
> URL: http://tools.oasis-open.org/issues/browse/OFFICE-2630
> Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
> Issue Type: Bug
> Components: OpenFormula
> Affects Versions: ODF 1.2 Part 2 CD 1
> Reporter: Robert Weir
>
> I thought we nailed this one a while ago, but I see the problem still in Part 2, CD 01.
> YEARFRAC is currently defined as "Computes the fraction of the number of years between a StartDate and EndDate.
> Basis is the system for determining how many days are in a month or year."
> OK. So YEARFRAC is A/B where A= number of days between the two dates, using the counting conventions of the basis. And B is what? A year certainly. But how many days? 365? 365.25? Dependent on whether date 1 or date 2 is in a leap year?
> I thought David figured this out at one point.
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