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goptions reset=all cback=white border ftext=zapf;

data a;
  input xvar yvar zvar;
  datalines;
1 10 2
2 20 2
3 27 2
4 42 2
5 50 2
6 40 2
7 36 2
8 55 2
9 75 2
;


/* This data step creates a dummy Y variable.  The offset that is     */
/* used will vary dramatically based on the original Y variable       */
/* value.  The data step also offsets the midpoint variable to        */
/* give the graph the shadow effect. The midpoint variable values     */
/* will also vary dramatically based on the midpoint axis data range. */

data b;
  set a;
  yvar = yvar - 1;
  xvar = xvar + .2;
  zvar = 1;
run;

data combine;
  set a b;
run;

proc gplot data=combine;
  plot yvar * xvar = zvar  / lvref=1 cvref=black autovref haxis=axis1
                               vaxis=axis2 cframe=cyan nolegend;
  axis1 order=(0 to 10 by 1) offset=(0,0) minor=none;
  axis2 order=(0 to 100 by 20) offset=(0,0) minor=none;

  /* The widths used on the SYMBOL statements will vary dramatically */
  /* based on the device used to display and/or print the graph.     */

  symbol1 i=needle v=none c=black w=40;
  symbol2 i=needle v=none c=yellow w=40;
  note h=3 c=black  j=center move=(31,83)pct f=swissb 'Shadow Plot'
       h=3 c=yellow j=center move=(30,84)pct f=swissb 'Shadow Plot';
run;
quit;

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