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Finance

  

YearFraction

  

return the interval between two dates as a fraction of the year

 

Calling Sequence

Parameters

Description

Examples

Compatibility

Calling Sequence

YearFraction(todate, daycounter)

YearFraction(fromdate, todate, daycounter)

Parameters

fromdate

-

a string containing a date specification in a format recognized by ParseDate or a date data structure; first date

todate

-

a string containing a date specification in a format recognized by ParseDate or a date data structure; second date

daycounter

-

(optional) day counter or the name of a day counting convention

Description

• 

The YearFraction command returns the period between fromdate and todate as a fraction of the year calculated according to the day counting convention specified by daycounter. If no day counter is specified, the default one will be used.

• 

See DayCounter or CalendarsAndDayCounters for a detailed description of the supported day count conventions and additional examples.

Examples

withFinance:

YearFractionDec-20-2005,Nov-05-2006

0.8767123288

(1)

YearFractionDec-20-2005,Nov-05-2006,ISMA

0.9166666667

(2)

YearFractionDec-20-2005,Nov-05-2006,Simple

0.8750000000

(3)

YearFractionDec-20-2005,Nov-05-2006,OneDay

1.

(4)

DCFinance:-DayCounterOneDay:

YearFractionDec-20-2005,Nov-05-2006,DC

1.

(5)

SetEvaluationDateNovember 17, 2006:

EvaluationDate

November 17, 2006

(6)

YearFractionDecember 01, 2007,December 01, 2008

1.000232053

(7)

YearFractionDecember 01, 2007,December 01, 2008,Thirty360European

1.

(8)

YearFractionDecember 01, 2008

2.038588218

(9)

YearFractionDecember 01, 2008,Thirty360European

2.038888889

(10)

Compatibility

• 

The Finance[YearFraction] command was introduced in Maple 15.

• 

For more information on Maple 15 changes, see Updates in Maple 15.

See Also

Finance[DayCount]

Finance[DayCounter]

Finance[FormatDate]

Finance[ParseDate]

 


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