Avoid the error of "no statistic associated with XXX." in PROC REPORT

One can avoid this error by putting a dummy analysis variable on the end of the COLUMN statement.  For example:

proc report data=test headline headskip split='~' nowd spanrows;
      column n vargrp trt, (timer, (statc)) dummy;
      define n /group noprint;
      define vargrp /group order=internal style(column)={cellwidth=1.2in} left ' ' id;
      define trt /across order=internal style(column)={cellwidth=0.6in} center ' ' ;
      define timer /across order=internal style(column)={cellwidth=0.6in} center ' ' ;
      define statc /display style(header column)={cellwidth=0.6in} center ' ';
      define dummy /computed noprint;
run;