yearstart - script and chart function

This function returns a timestamp corresponding to the start of the first day of the year containing date. The default output format will be the DateFormat set in the script.

Syntax:

YearStart(date[, period_no[, first_month_of_year]])

Return data type: dual

Arguments:

Argument	Description
date	The date to evaluate.
period_no	period_no is an integer, where the value 0 indicates the year which contains date. Negative values in period_no indicate preceding years and positive values indicate succeeding years.
first_month_of_year	If you want to work with (fiscal) years not starting in January, indicate a value between 2 and 12 in first_month_of_year.

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

yearstart ('19/10/2001')

Returns 01/01/2001.

yearstart ('19/10/2001', -1)

Returns 01/01/2000.

yearstart ('19/10/2001', 0, 4)

Returns 01/04/2001.

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 first day in the year of each invoice date in the table, where the first month in the year is specified as month 4.

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 *,

YearStart(InvDate, 0, 4) AS YrStart

Resident TempTable;

Drop table TempTable;

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

InvDate	YrStart
28/03/2012	01/04/2011
10/12/2012	01/04/2012
5/2/2013	01/04/2012
31/3/2013	01/04/2012
19/5/2013	01/04/2013
15/9/2013	01/04/2013
11/12/2013	01/04/2013
2/3/2014	01/04/2013
14/5/2014	01/04/2014
13/6/2014	01/04/2014
7/7/2014	01/04/2014
4/8/2014	01/04/2014

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