Hello!
Sorry if this is a remedial question but I'm learning SAS for a project and I'm having some trouble going from given proc logistic code (shown below) to using proc genmod instead. Any help would be appreciated!
proc logistic data=data;
class x1(ref="1")/param=ref;
class x2(ref="2")/param=ref;
class x3(ref="3")/param=ref
weight x4;
model y(event='1') = x1
x2
x3
x4
x5
x4 * x2
x5 * x3
/stb;
output out=output.blah predicted=pred;
ods output parameterestimates = output.par_blah;
run;
You might want to acquaint yourself with the SASHELP data sets, which enable you to post examples that use real data that everyone can access. For example, see
You should also bookmark the SAS/STAT documentation.
/* show variables for sashelp.heart */
proc contents data=sashelp.heart varnum; run;
/* show levels of categorical variables for sashelp.heart */
proc freq data=sashelp.heart;
tables sex BP_Status Chol_Status;
run;
ods select parameterestimates;
proc logistic data=sashelp.heart;
class BP_Status(ref="Normal")/param=ref;
class Chol_Status(ref="Desirable")/param=ref;
model Sex(event='Female') = BP_Status
Chol_Status Weight Diastolic*Chol_Status
;
output out=blah predicted=pred;
ods output parameterestimates = par_blah;
run;
ods select parameterestimates;
proc genmod data=sashelp.heart;
class BP_Status(ref="Normal")/param=ref;
class Chol_Status(ref="Desirable")/param=ref;
model Sex(event='Female') = BP_Status
Chol_Status Weight Diastolic*Chol_Status
/ dist=bin;
output out=blah2 predicted=pred;
ods output parameterestimates = par_blah2;
run;
/* compare predicted values to show they are approximately equal */
proc compare base=blah compare=blah2 method=absolute criterion=1e-8;
run;
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