How can I compute/derive additional attributes?
New Altair Community Member
Updated by Jocelyn
I have a dataset with two columns, A, and B. For each record, i want to compute C = (B-A)/B. Can I do that in RapidMiner transformations? Can you direct me to the right one?
I also want to compute the overall C. That is ((B1 + B2 + B3 ...) - (A1 + A2 + A3 ...)) / (B1 + B2 + B3 ...). Can I compute this aggregate function? How? (I think this is a special case of a weighted average which I think I've seen reference to but haven't found the method for computing.)
Thanks.
I also want to compute the overall C. That is ((B1 + B2 + B3 ...) - (A1 + A2 + A3 ...)) / (B1 + B2 + B3 ...). Can I compute this aggregate function? How? (I think this is a special case of a weighted average which I think I've seen reference to but haven't found the method for computing.)
Thanks.