Rolling Out YTD Average Sales

[#1]

Hi All,

I have a question.

Here's the scenario. I am trying to calculate the YTD Avg Sales per month at the data loading

DepartmentID	Month	Sales	YTD Avg Sales
20156	1/01/2014	200.00	200.00
20156	1/02/2014	300.00	250.00
20156	1/03/2014	400.00	300.00
20156	1/04/2014	500.00	350.00
20156	1/05/2014	400.00	360.00
20156	1/06/2014	450.00	375.00
20156	1/07/2014	500.00	392.86
20156	1/08/2014	600.00	418.75

for Feb, YTD Avg Sales is the average of Sales per month from Jan - Feb;

for Aug, YTD Avg Sales is the average of Sales per month from Jan - Aug.

I tried RangeAvg(Above()), it works in charts but does not work in scripts.

Does anyone know how to do the coding?

Thanks.

Linda

[MK_QSL · Accepted solution]

Temp:

Load

  DepartmentID,

  Date(Date#(Month,'D/MM/YYYY')) as Month,

  Sales

Inline

[

  DepartmentID, Month, Sales

  20156, 1/01/2014, 200.00

  20156, 1/02/2014, 300.00

  20156, 1/03/2014, 400.00

  20156, 1/04/2014, 500.00

  20156, 1/05/2014, 400.00

  20156, 1/06/2014, 450.00

  20156, 1/07/2014, 500.00

  20156, 1/08/2014, 600.00

  20157, 1/01/2014, 200.00

  20157, 1/02/2014, 250.00

  20157, 1/03/2014, 300.00

  20157, 1/04/2014, 600.00

  20157, 1/05/2014, 400.00

  20157, 1/06/2014, 250.00

  20157, 1/07/2014, 500.00

  20157, 1/08/2014, 300.00

];

NoConcatenate

Load

  *,

  TotalSales/ID as AvgSales;

Load

  *,

  IF(DepartmentID <> Previous(DepartmentID), 1, Peek(ID) + 1) as ID,

  IF(DepartmentID = Previous(DepartmentID), Peek(TotalSales) + Sales, Sales) as TotalSales

Resident Temp

Order By DepartmentID, Month;

Drop Table Temp;

[#3]

Thanks for your answer, Manish. I am trying your code