weekend - script and chart function

This function returns a value corresponding to a timestamp of the last millisecond of the last day (Sunday) of the calendar week containing date The default output format will be the DateFormat set in the script.

Syntax:

WeekEnd(date [, period_no[, first_week_day]])

Return data type: dual

Arguments:

Argument	Description
date	The date to evaluate.
period_no	shift is an integer, where the value 0 indicates the week which contains date. Negative values in shift indicate preceding weeks and positive values indicate succeeding weeks.
first_week_day	Specifies the day on which the week starts. If omitted, the value of variable FirstWeekDay is used. The possible values first_week_day are: 0 for Monday 1 for Tuesday 2 for Wednesday 3 for Thursday 4 for Friday 5 for Saturday 6 for Sunday See: FirstWeekDay

Argument

Description

date

The date to evaluate.

period_no

shift is an integer, where the value 0 indicates the week which contains date. Negative values in shift indicate preceding weeks and positive values indicate succeeding weeks.

first_week_day

Specifies the day on which the week starts. If omitted, the value of variable FirstWeekDay is used.

The possible values first_week_day are:

0 for Monday
1 for Tuesday
2 for Wednesday
3 for Thursday
4 for Friday
5 for Saturday
6 for Sunday

See: FirstWeekDay

These examples use the date format DD/MM/YYYY. The date format is specified in the SET DateFormat statement at the top of your data load script. Change the format in the examples to suit your requirements.

Example

Result

weekend('10/01/2013')

Returns 12/01/2013 23:59:59.

weekend('10/01/2013', -1)

Returns 06/01/2013 23:59:59.

weekend('10/01/2013', 0, 1)

Returns 14/01/2013 23:59:59.

Add the example script to your app and run it. Then add, at least, the fields listed in the results column to a sheet in your app to see the result.

This example finds the final day in the week following the week of each invoice date in the table.

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 *,

WeekEnd(InvDate, 1) AS WkEnd

Resident TempTable;

Drop table TempTable;

The resulting table contains the original dates and a column with the return value of the weekend() function. You can display the full timestamp by specifying the formatting in the properties panel.

InvDate	WkEnd
28/03/2012	08/04/2012
10/12/2012	23/12/2012
5/2/2013	17/02/2013
31/3/2013	07/04/2013
19/5/2013	26/05/2013
15/9/2013	22/09/2013
11/12/2013	22/12/2013
2/3/2014	09/03/2014
14/5/2014	25/05/2014
13/6/2014	22/06/2014
7/7/2014	20/07/2014
4/8/2014	17/08/2014

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