Name

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MONTH_DAY

Purpose

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This function returns the first and last days of the month.

Category

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Calendar

Calling Sequence

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Result = MONTH_DAY( Index )

Inputs

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Index: The index number of the calendar month (0-11), of
type integer. Can be a scalar or array.

Outputs

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Result: Returns the index number, with respect to the calendar year,
of the first and last days of the specified month.

Keyword Parameters

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ALL: If set, the index values of all of the days in the month(s)
                will be returned. Otherwise, only the first and last are
                returned.
      LEAPYEAR: If set, the first and last days will be for months in leap
                years.

Uses

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Procedure

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This function returns a vector with the index number, with respect to
the calendar year, of the first and last days of the month "Index."

Example

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Get the end days of calendar month #1 (i.e. February).
result = MONTH_DAY( 1 )
Result = [ 31, 58 ]

Modification History

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  Written by: Daithi A. Stone, 2002-01-13.
      Modified: Benjamin S. Grandey, 2010-02-05 (added LEAPYEAR
                      keyword).