****************************:
*** EXAMPLE WITHOUT TIES ***;
****************************;
DATA noties; INPUT group $ cortisol @@; CARDS;
  I 262   I 307   I 211   I  323   I 454   I 339 
  I 304   I 154   I 287   I 356
 II 465  II 501  II 455  II  355  II 468  II 362
III 343 III 772 III 207 III 1048 III 838 III 687
CARDS;

PROC NPAR1WAY DATA=noties WILCOXON;
     CLASS group;
     VAR cortisol;
TITLE 'KRUSKAL-WALLIS TEST EXAMPLE';

*************************:
*** EXAMPLE WITH TIES ***;
*************************;
DATA ties; 
     DO group=1 TO 3;  DO n=1 TO 8;
        INPUT space @@;  OUTPUT;
     END; END;
CARDS;
.185 .187 .209 .194 .175 .197 .188 .185
.189 .193 .176 .195 .169 .183 .185 .179
.219 .204 .219 .234 .233 .194 .209 .195

PROC NPAR1WAY DATA=ties WILCOXON;
     CLASS group;
     VAR space;
TITLE 'KRUSKAL-WALLIS TEST EXAMPLE WITH TIES';
RUN;