/* Multinomial Logit: simulated data (MNLogit.q) */
/* see http://wizard.ucr.edu/~rhannema/soc271/mlogit.html */


options linesize=70;

title 'Multinomial Logit: simulated data (MNLogit.q)';
data sim;
  infile 'MNLogit.dat';
  input w x rslt cnt p;
run;

proc catmod;
  response logits;
  weight cnt;
  direct x;    /* use "direct" for continuous covariates*/
  model rslt=w x / pred=prob pred=freq ml;
run;