data sedans;
  set sashelp.cars(where=(type='Sedan'));
  keep mpg_city horsepower name group;
  length name $12;
  if mpg_city> 35 then do; group=1; name=put(model, 12.); end;
  else if horsepower > 400 then do; group=1; name=put(model, 12.); end;
  else group=.;
  run;
  proc print;run;

ods listing;
ods graphics / reset width=4in height=2.5in imagename='Scatter_Label_Sedans';
title 'Mileage by Horsepower for all Sedans';
proc sgplot data=sedans nocycleattrs;
  scatter x=horsepower y=mpg_city /  
          markerattrs=(symbol=circlefilled size=12) transparency=0.8;
  scatter x=horsepower y=mpg_city / datalabel=name group=group nomissinggroup 
          markerattrs=(symbol=circlefilled size=12);
  reg x=horsepower y=mpg_city / degree=2 cli name='a' nomarkers;
  discretelegend 'a' / location=inside position=topright across=1;
  run;