[OASIS Issue Tracker] Created: (OFFICE-2630) YEARFRAC ambiguity

YEARFRAC ambiguity
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                 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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