Modern Finance DayCountFractionDouble

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DayCountFractionDouble

Returns the fraction of a year between two dates on a basis, as a double.

Syntax

DayCountFractionDouble( d1, d2, basis )

Examples

#import "std/chrono"
#import "std/money"
using money, chrono

'' The same fraction as a double, for the dated discounting in
'' fincash.tiko where the exponent cannot be exact anyway.
dim as LocalDate a = LocalDate( 2026, 1, 1 )
dim as LocalDate b = LocalDate( 2026, 7, 1 )

print DayCountFractionDouble( a, b, DAYCOUNT_ACTUAL_365_FIXED )   '' 0.4958904...
print DayCountFractionDouble( a, b, DAYCOUNT_THIRTY_360_US )      '' 0.5

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Library: Finance
Category: Finance
Documented under: Nothing Becomes A Keyword
Source: pkg/std/money/fincore.tiko in the tiko repository.