When you say that GRADSTEM remains exactly the same, do you mean every output record has the same value? What value does it end up with? Is it a variable on the input data set?

Jack Clark Research Analyst Center for Health Program Development and Management University of Maryland, Baltimore County 410-455-6256

-----Original Message----- From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of E Henderson Sent: Friday, August 10, 2007 11:09 AM To: SAS-L@LISTSERV.UGA.EDU Subject: Iterative Processing Issues

I'm trying to run the following code, but every time I execute it, I the values of the variable I'm trying to create (gradstem) remain exactly the same. Any guidance would be appreciated.

data nlsy79_stemtrans_v3_ba;

set nlsy79_stemtrans_v2_ba;

array enrollyear{12} enrollyear1-enrollyear12;

array enrolltype{12} enrolltype1-enrolltype12;

array attstat{12} attstat1-attstat12;

array majorcat{12} majorcat1-majorcat12;

/*

array jobord{13} jobord1-jobord13;

array currstat{13} currstat1-currstat13;

array hoursjob{13} hoursjob1-hoursjob13;

array yearearn{13} yearearn1-yearearn13;

array occcatjob{13} occcatjob1-occcatjob13;

*/

gradstem=0;

do i=1 to i=12 until (enrollyear{i}=outyear);

if attstat{i}=1 then do;

if 1<=(majorcat{i})<=4 and (enrolltype{i})=1 then gradstem=1;/*Grad FT STEM*/

else if 5<=(majorcat{i})<=9 and (enrolltype{i})=1 then gradstem=2;/*Grad FT Non STEM*/

else if 1<=(majorcat{i})<=4 and (enrolltype{i})=2 then gradstem=3;/*Other FT STEM*/

else if 5<=(majorcat{i})<=9 and (enrolltype{i})=2 then gradstem=4;/*Other FT Non STEM*/

end;

end;

drop i;

run;