topic Re: proc logistic: getting the c statistic in SAS Programming

proc logistic: getting the c statistic

hein68 — Mon, 01 Nov 2021 20:33:13 GMT

How do I alter the code below to make sure I get the c statistic?

ods graphics on;

proc logistic data=&data SIMPLE plots(only)=(roc(id=prob) effect)
PLOTS(ONLY)=(ODDSRATIO(range=clip));
model variable_2cat = ARG1_Hs00163660_m1 /
LACKFIT
RSQUARE
LINK=LOGIT
CLPARM=WALD
CLODDS=WALD
ROCCI;

run;
quit;

Thanks!

Re: proc logistic: getting the c statistic

sbxkoenk — Mon, 01 Nov 2021 21:42:38 GMT

Hello,

Why do you think you won't get the c-statistic with above code?

The c-statistic is in the last printed table (default output), entitled "Association of Predicted Probabilities and Observed Responses" (right-bottom cell).

The ODS table name is 'Association'.

Koen

Re: proc logistic: getting the c statistic

Ksharp — Tue, 02 Nov 2021 12:31:38 GMT

data test ( keep = anemia allergy weight visit );
 set sashelp.bweight;
 if _N_ <= 100;
 anemia = black;
 allergy = married;
run;





ods select none;
*Outcome = ANEMIA;
proc logistic data = test descending  ;
 model anemia = weight visit/outroc=roc1;
 ods output Association=Association1;
run;
ods select all;

Check dataset Association1