SAS - Add ranks - Select Top N records

SAS_rank_top_N.sas

*Create ranks for variables value;
proc rank data=sashelp.class out=class_ranked 
/*      (where= (rank_weight < 4)) */
     ;
var weight;
ranks rank_weight;
run;

*display output;
title 'Unsorted but ranked';
proc print data=class_ranked;
run;

*sort for display;
proc sort data=class_ranked;
by rank_weight;
run;

title 'Sorted and ranked';
proc print data=class_ranked;
run;

*filter out the top 3 regardless of the number of ties;
data final;
set class_ranked;
by rank_weight;
if first.rank_weight then group + 1;
if group <= 3;
run;*Create ranks for variables value;
proc rank data=sashelp.class out=class_ranked 
/*      (where= (rank_weight < 4)) */
     ;
var weight;
ranks rank_weight;
run;

*display output;
title 'Unsorted but ranked';
proc print data=class_ranked;
run;

*sort for display;
proc sort data=class_ranked;
by rank_weight;
run;

title 'Sorted and ranked';
proc print data=class_ranked;
run;

*filter out the top 3 regardless of the number of ties;
data final;
set class_ranked;
by rank_weight;
if first.rank_weight then group + 1;
if group <= 3;
run;