Calculation context in Answer

Question

I've a table including 4 columns as Prod Category, A, B, Ratio.
Ratio = 100*A/B.
If I created a new column named as
Prod Cat (80-20 pareto) = case when rsum(Ratio < 80) then Prod Category else 'All Other Products' end.
I can get the first %80 Ratio Products with its name and the resting is as 'All Other Products'
The problem is If I use Prod Category in my table/pivot table the ratio is being calculated correctly but when I use Prod Cat (80-20 pareto) instead of Prod Category then the ratio is repeat for all rows as 100*sum(A)/sum(B).
The question is for a run-time calculation how can I define its calculation context. I mean how can I tell OBI to calculate the ratio for the following alternatives
1-) row by row ->A/B for each Product category
2-) A/sum(B) -> Ratio for each product category by for all products
Edited by: BIEXP on 30-Mar-2010 10:46

Answer 1

Hi ravi,
But some times it will work correctly even though i right click---> create column , i don't think that might be the issue...
Need one more info :
MaxSales=MAX( [SAELSREVENUE] FOREACH [ QUARTER] )
IN ([YEAR]).
what is the main use of IN ( [ YEAR ] ) ( output context ) . is it mandatory to get the output.
can u pls explain  a little bit about the output context that we give to get the output.
calculation context