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## Accumulated Expressions

Hello,

I have this source table:

Month,Amount, Perecentage

January 10 , 5

February20,4

February 30,6

Marcha 56,2

April 15, 1

And we need to make a simple table calculating a formula like

sum(Amount*Percentage)/sum(Amount) accumulated by month.

The result table should be something like:

Month, AccumulateValue

January 5 --> (10x5/10)

February 5,16 --> (10x5+20x4+30x6)/(10+20+30)

March --> 4 (10x5+20x4+30x6+56x2)/(10+20+30+56)

April--> 3,33(10x5+20x4+30x6+56x2+15x1)/(10+20+30+56+15)

How do I configure the expression?

Notice that in the new table there is no any accumulated colum.

Thank you,

1 Solution

Accepted Solutions  Champion III

Attached are two approaches. The first uses above() to manually accumulate. The second links an AsOfMonth to all Months on or before then so that a simple sum() gives the accumulation. I prefer the second approach, as the first can be broken by simply changing the sort order or selecting values for Month.

2 Replies  Champion III

Attached are two approaches. The first uses above() to manually accumulate. The second links an AsOfMonth to all Months on or before then so that a simple sum() gives the accumulation. I prefer the second approach, as the first can be broken by simply changing the sort order or selecting values for Month. Anonymous
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Author

Ohhh Thank you SO MUCH!.... My real problem was not to find the option "Hidden Column"!!!

Thank you,  Community Browser