inweektodate - script and chart function

This function returns True if timestamp lies inside the part of week containing base_date up until and including the last millisecond of base_date.

Syntax:  

InWeekToDate (timestamp, base_date, period_no [, first_week_day])

Return data type: Boolean

Arguments:  

Example 1:  

inweektodate ('12/01/2006', '12/01/2006', 0)

Returns True

Example 2:  

inweektodate ('12/01/2006', '11/01/2006', 0)

Returns False

Example 3:  

inweektodate ('12/01/2006', '18/01/2006', -1)

Returns False
Because period_no is specified as -1, the effective data that timestamp is measured against is 11/01/2006.

Example 4:  

inweektodate ( '11/01/2006', '12/01/2006', 0, 3 )

Returns False
Because first_week_day is specified as 3 (Thursday), which makes 12/01/2006 the first day of the week following the week containing 12/01/2006.

Example 5:  

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 during the fourth week after the week in base_date, by specifying period_no as 4, but before the value of base_date.

TempTable:

LOAD RecNo() as InvID, * Inline [

InvDate

28/03/2012

10/12/2012

5/2/2013

31/3/2013

19/5/2013

15/9/2013

11/12/2013

2/3/2014

14/5/2014

13/6/2014

7/7/2014

4/8/2014

];

 

InvoiceData:

LOAD *,

InWeekToDate(InvDate, '11/01/2013', 4) AS InWeek2DPlus4

Resident TempTable;

Drop table TempTable;

The resulting table contains the original dates and a column with the return value of the inweek() function.