DayCounter for FittedBondDiscountCurve

Posted by SteveGe on Oct 28, 2014; 1:23am
URL: http://quantlib.414.s1.nabble.com/DayCounter-for-FittedBondDiscountCurve-tp16001.html

FittedBondDiscountCurve use a vector of FixedRateBondHelper, with each of BondHelper has its own DayCounter(i.e. ActualActual::Bond for long end or ActualActual::AFB for short end）

The question then what would be the correct DayCounter for FittedBondDiscountCurve ?
We have used ActualActual::Bond in the FittedBondDiscountCurve , it would call the yearFraction without refStart and refEnd.  so round to months, which was wrong.  

Any suggestions ?

Thanks