Hello I have this data that I wish to createABC from Data AB as follows:
Data A;
imput A B;
cards;
1 3
0 6
0 7
1 9
1 4
0 2
;
run;
Data ABC;
input A B C;
cards;
1 3 C=3+6+7+9+4+2=31
0 6 C=6
1 9 C=9+4+2=15
1 4 C=4+6
0 2 C=2
;
Thanks
Can be done with a double do loop:
data ABC;
do until(done);
set a end=done;
totSum + B;
end;
done = 0;
do until(done);
set a end=done;
if A then C = totSum; else C = B;
output;
totSum + (-B);
end;
keep A B C;
run;
proc print data=ABC noobs; run;
Can be done with a double do loop:
data ABC;
do until(done);
set a end=done;
totSum + B;
end;
done = 0;
do until(done);
set a end=done;
if A then C = totSum; else C = B;
output;
totSum + (-B);
end;
keep A B C;
run;
proc print data=ABC noobs; run;
Hi, no array but another way ...
data a;
input a b @@;
datalines;
1 3 0 6 0 7 1 9 1 4 0 2
;
* place sum of values of variable B in macro variable &TOT;
proc sql noprint;
select sum(b) into :tot from a;
quit;
data want (keep=a b c);
set a;
cumb + lag(b);
c = a*(&tot-cumb) + ^a*b;
run;
data set WANT ...
Obs a b c
1 1 3 31
2 0 6 6
3 0 7 7
4 1 9 15
5 1 4 6
6 0 2 2
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