inweek - script and chart function
This function returns True if timestamp lies inside the week containing base_date.
InWeek (timestamp, base_date, period_no[, first_week_day])
Return data type: Boolean
|timestamp||The date that you want to compare with base_date.|
|base_date||Date that is used to evaluate the week.|
|period_no||The week can be offset by period_no. period_no is an integer, where the value 0 indicates the week which contains base_date. Negative values in period_no indicate preceding weeks and positive values indicate succeeding weeks.|
By default, the first day of the week is Monday,starting at midnight between Sunday and Monday. To indicate the week starting on another day, specify an offset in first_week_day. This may be given as a whole number of days and/or fractions of a day.
inweek ('12/01/2006', '14/01/2006', 0)
inweek ('12/01/2006', '20/01/2006', 0 )
inweek ('12/01/2006', '14/01/2006', -1 )
inweek ('07/01/2006', '14/01/2006', -1)
inweek ('12/01/2006', '09/01/2006', 0, 3)
Because first_week_day is specified as 3 (Thursday), which makes 12/01/2006 the first day of the week following the week containing 09/01/2006.
Add the example script to your document and run it. Then add, at least, the fields listed in the results column to a sheet in your document to see the result.
This example checks if an invoice date falls at any time in the fourth week after the week in base_date, by specifying period_no as 4.
LOAD RecNo() as InvID, * Inline [
InWeek(InvDate, '11/01/2013', 4) AS InWeekPlus4
Drop table TempTable;
The resulting table contains the original dates and a column with the return value of the inweek() function.
The InvDate5/2/2013 falls within the week that is four weeks after the base_date: 11/1/2013.