DayCountConvention_ACT_ACT_ISDA (finmath lib 5.0.4 API)

java.lang.Object
- net.finmath.time.daycount.DayCountConvention_ACT
- - net.finmath.time.daycount.DayCountConvention_ACT_ACT_ISDA

All Implemented Interfaces:

Serializable, DayCountConvention
```
public class DayCountConvention_ACT_ACT_ISDA
extends DayCountConvention_ACT
implements Serializable
```
Implementation of ACT/ACT ISDA. Calculates the day count by calculating the actual number of days between startDate and endDate. A fractional day is rounded to the approximately nearest day. The day count fraction is calculated using ACT_ACT_ISDA convention, that is, the day count fraction is n₁/365 + n₂/366, where
- n₁ is the number of days falling into a non-leap year,
- n₂ is the number of days falling into a leap year,
where the start date is included in the counting and the end date is excluded in the counting. This means that from 31.12.2014 to 01.01.2015 the day count fraction is 1/366 since 2014 is a leap year.
The class passed that standard benchmark test in the IDSA document see net.finmath.tests.time.daycount.DayCountConventionTest

The class can be constructed using isCountLastDayNotFirst = true, which will change its behavior compared to above. In this case the start date is excluded in the counting and the end date is included in the counting. This means that from 31.12.2014 to 01.01.2015 the day count fraction is 1/365 since 2015 is not a leap year.
Version:

1.0

Author:

Christian Fries

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`DayCountConvention_ACT_ACT_ISDA()`	Create an ACT/ACT ISDA day count convention.
`DayCountConvention_ACT_ACT_ISDA(boolean isCountFirstDayNotLast)`	Create an ACT/ACT ISDA day count convention.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getDaycountFraction(LocalDate startDate, LocalDate endDate)`	Return the daycount fraction corresponding to the period from startDate to endDate given the specific daycount convention.
`String`	`toString()`

Methods inherited from class net.finmath.time.daycount.DayCountConvention_ACT
daysBetween, getDaycount

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DayCountConvention_ACT_ACT_ISDA
```
public DayCountConvention_ACT_ACT_ISDA(boolean isCountFirstDayNotLast)
```
    Create an ACT/ACT ISDA day count convention.
    
    Parameters:
    
    isCountFirstDayNotLast - If this value is false (default), the days are counted including the first day and excluding the last day. If this field is true, the days are counted excluding the first day and including the last day.
  - DayCountConvention_ACT_ACT_ISDA
```
public DayCountConvention_ACT_ACT_ISDA()
```
    Create an ACT/ACT ISDA day count convention.
- Method Detail
  - getDaycountFraction
```
public double getDaycountFraction(LocalDate startDate,
                                  LocalDate endDate)
```
    Description copied from interface: DayCountConvention
    
    Return the daycount fraction corresponding to the period from startDate to endDate given the specific daycount convention.
    
    Specified by:
    
    getDaycountFraction in interface DayCountConvention
    
    Parameters:
    
    startDate - The start date given as a LocalDate.
    
    endDate - The end date given as a LocalDate.
    
    Returns:
    
    The daycount fraction corresponding to the given period.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object