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daysdif

Days between dates for any for any day-count basis

Syntax

  • NumDays = daysdif(StartDate,EndDate)
  • NumDays = daysdif(StartDate,EndDate,Basis)

Description

NumDays = daysdif(StartDate,EndDate) returns the number of days between dates StartDate and EndDate. The first date for StartDate is not included when determining the number of days between first and last date.

Any input argument can contain multiple values, but if so, the other inputs must contain the same number of values or a single value that applies to all. For example, if StartDate is an n-row array of character vector dates, thenEndDate must be an n-row array of character vector dates or a single date. NumDays is then an n-by-1 vector of numbers.

NumDays = daysdif(StartDate,EndDate,Basis) returns the number of days between dates StartDate and EndDate using the given day-count, Basis). The first date for StartDate is not included when determining the number of days between first and last date.

Any input argument can contain multiple values, but if so, the other inputs must contain the same number of values or a single value that applies to all. For example, if StartDate is an n-row array of character vector dates, thenEndDate must be an n-row array of character vector dates or a single date. NumDays is then an n-by-1 vector of numbers.

Examples

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Determine the NumDays using date character vectors for StartDate and EndDate.

NumDays = daysdif('3/1/99', '3/1/00', 1)
NumDays =

   360

Determine the NumDays using a datetime array for StartDate.

NumDays = daysdif(datetime('1-Mar-1999','Locale','en_US'), '3/1/00', 1)
NumDays =

   360

Determine the NumDays using a vector for EndDate.

MoreDays = ['3/1/2001'; '3/1/2002'; '3/1/2003'];
NumDays = daysdif('3/1/98', MoreDays)
NumDays =

        1096
        1461
        1826

Related Examples

Input Arguments

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Start date, specified as a scalar or an N-by-1 or 1-by-N vector using serial date numbers, date character vectors, or datetime arrays.

Data Types: double | char | datetime

End date, specified as a scalar or an N-by-1 or 1-by-N vector using serial date numbers, date character vectors, or datetime arrays.

Data Types: double | char | datetime

Day-count basis of the instrument, specified as an integer with a value of 0 through 13 or a N-by-1 vector of integers with values of 0 through 13.

  • 0 = actual/actual (default)

  • 1 = 30/360 (SIA)

  • 2 = actual/360

  • 3 = actual/365

  • 4 = 30/360 (BMA)

  • 5 = 30/360 (ISDA)

  • 6 = 30/360 (European)

  • 7 = actual/365 (Japanese)

  • 8 = actual/actual (ICMA)

  • 9 = actual/360 (ICMA)

  • 10 = actual/365 (ICMA)

  • 11 = 30/360E (ICMA)

  • 12 = actual/365 (ISDA)

  • 13 = BUS/252

For more information, see basis.

Data Types: single | double

Output Arguments

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Number of days between the StartDate and EndDate. NumDays returns as a double for serial date number, date character vector, and datetime inputs.

The first date for (StartDate) is not included when determining the number of days between first and last date.

References

Stigum, Marcia L. and Franklin Robinson. Money Market and Bond Calculations. Richard D. Irwin, 1996, ISBN 1-55623-476-7

Introduced before R2006a

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