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Former Member
Dec 10, 2008 at 09:28 PM

exception aggregation with two characteristics

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hi:

I need get the average value of a KF, based on the unique combinations of two characteristics.

material and color are two characteristics.

The base data is

m1 c1 $

m1 c2 $

m1 c3 $

m2 c4 $

m2 c1 $

Now there is 5 unique combination of mtl and color. but when I average the $ it is averaging it with dividing the $ sum by 4 as there is only 4 unique colors (with except.aggr. for color char). How can I make it to consider all the unique combinations of mtl and color and get the average even with duplicate colors?

thanks.