Hi, I looking for help with this question. I have a dataset with columns A and B and want to calculate C such that the final dataset looks something like this:
A B C
1 5 (4*5)=20
2 6 (3*5)+(4*6)=39
3 7 (2*5)+(3*6)+(4*8)=56
4 8 (1*5)+(2*6)+(3*7)+(4*8)=70
I will be more than glad to get techie hands on this one for me.
Thanks
kmante
Start here:
data want (drop=_:);
input a b;
do _i = 0 to (a-1);
c = sum( c, (b-_i)*(b-a-_i) );
end;
cards;
1 5
2 6
3 7
4 8
;
run;
Shouldn't it be
3 7 (2*5)+(3*6)+(4*7)=56
There are many ways to guess what is required. What would be the result if the dataset contained only the first three lines?
PG
Hi PG,
Yes thanks for the correction it should be (4*7)...
The actual dataset contain more observations than the example but the logic should work for the bid data if found for this.
Start here:
data want (drop=_:);
input a b;
do _i = 0 to (a-1);
c = sum( c, (b-_i)*(b-a-_i) );
end;
cards;
1 5
2 6
3 7
4 8
;
run;
Hi SAS_Bigot,
That was a brilliant and simple answer and works perfect. Thanks a lots.
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