How to aggregate sum of past 2 values + current value + next 2 values with set analysis?

Question

I want to calculate the aggregate sum of past 2 values + current value + next 2 values with set analysis. With or Without set analysis it works as expect. It works as expected with or without set analysis ("{<Week=>}"). But when zooming the values of the graph changes accordingly. So I used set analysis. Even though it's not working for my case.

But, when I zoom the chart we are not getting the actual result. Since I used set analysis.

I need the following. Consider this is my data,

|Week    | Value   |
|------------------|
|01/2011 |  256    |
|02/2011 |  2056   |
|03/2011 |  112    |
|04/2011 |  95     |
|05/2011 |  1069   |
|07/2011 |  125    |
|08/2011 |  73     |
--------------------

I need to plot data for 04/2011 would be (2056+112+95+1069+125) in the same we need to calculate for each date

I am trying with the following expression:

It works fine: RangeSum(Below(Sum(Value),1,6)) + RangeSum(Above(Sum(Value),1,6)) + Sum(Value)

For zooming I used set analysis as follows,

RangeSum(Below(Sum({<Date=>}Value),1,6)) + RangeSum(Above(Sum({<Date=>}Value),1,6)) + Sum({<Date=>}Value)

This is not working as expected.

Answer 1

This should work as you want:

Backend Code:

Inline:
LOAD * INLINE [
    WeekKey,Value
    01/2011,256    
    02/2011,2056   
    03/2011,112    
    04/2011,95     
    05/2011,1069   
    07/2011,125    
    08/2011,73 
];

dateTemp:
LOAD
WeekKey,
Right(WeekKey,4)&Left(WeekKey,2) as SortOrder,
Left(WeekKey,2) as Week,
Right(WeekKey,4) as Year
Resident Inline;

LOAD
RowNo() as Row,
*
Resident dateTemp
Order By SortOrder ASC;
DROP Table dateTemp;

Your expression:

Sum({<Week=,WeekKey=,Row = {'>=$(=max(Row)-2)<=$(=max(Row)+2) '}>} Value)