Hello
I have the following dataset;
data have;
input id 1. term $8. ca 1.;
datalines;
1 199602 1
1 199603 0
1 199701 1
1 199702 1
1 199703 0
1 199802 1
2 200501 1
2 200502 1
2 200503 0
2 200601 0
2 200602 0
3 201001 1
3 201002 1
3 201003 0
3 201101 1
3 201102 1
;
run;
I want it recoded to the following;
data want;
input id 1. term $8. ca 1.;
datalines;
1 199602 1
1 199603 1
1 199701 1
1 199702 1
1 199703 1
1 199802 1
2 200501 1
2 200502 1
2 200503 0
2 200601 0
2 200602 0
3 201001 1
3 201002 1
3 201003 1
3 201101 1
3 201102 1
;
run;
Basically, i want to recode id=1 and id=3 because both those ids have 1 in the first and 1 in the last term and therefore, if there are zeros in the in-between terms, i want to recode them into one.
Please help!
Thanks
ananda
data have;
input id 1. term $8. ca 1.;
datalines;
1 199602 1
1 199603 0
1 199701 1
1 199702 1
1 199703 0
1 199802 1
2 200501 1
2 200502 1
2 200503 0
2 200601 0
2 200602 0
3 201001 1
3 201002 1
3 201003 0
3 201101 1
3 201102 1
;
run;
data want;
do _n_=1 by 1 until(last.id);
set have;
by id;
if first.id then _n=ca;
end;
_n=ca & _n;
do _n_=1 to _n_;
set have;
if _n then ca=_n;
output;
end;
drop _:;
run;
data have;
input id 1. term $8. ca 1.;
datalines;
1 199602 1
1 199603 0
1 199701 1
1 199702 1
1 199703 0
1 199802 1
2 200501 1
2 200502 1
2 200503 0
2 200601 0
2 200602 0
3 201001 1
3 201002 1
3 201003 0
3 201101 1
3 201102 1
;
run;
data want;
do _n_=1 by 1 until(last.id);
set have;
by id;
if first.id then _n=ca;
end;
_n=ca & _n;
do _n_=1 to _n_;
set have;
if _n then ca=_n;
output;
end;
drop _:;
run;
Thank you very much for your quick response!
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