You can specify the eight compass points N, NE, E, SE, S, SW, W, and NW as keywords for the POSITION= option. The following statements create the display in Figure 17.125, which demonstrates all eight compass positions. The default is NW.

ods graphics off;
title 'Mean Chart for Diameters';
proc shewhart data=Wafers;
   xchart Diameter*Batch / tests= 1 to 8;
   inset ntests 1 / height=3 cfill=blank header='NW' pos=nw;
   inset ntests 2 / height=3 cfill=blank header='N ' pos=n ;
   inset ntests 3 / height=3 cfill=blank header='NE' pos=ne;
   inset ntests 4 / height=3 cfill=blank header='E ' pos=e ;
   inset ntests 5 / height=3 cfill=blank header='SE' pos=se;
   inset ntests 6 / height=3 cfill=blank header='S ' pos=s ;
   inset ntests 7 / height=3 cfill=blank header='SW' pos=sw;
   inset ntests 8 / height=3 cfill=blank header='W ' pos=w ;
run;