The HPBIN Procedure

Example 4.4 Winsorized Binning

For Winsorized binning, PROC HPBIN provides bucket binning and basic Winsorized statistical information for the input data. The following statements include the WINSOR and WINSORRATE=0.05 options and generate tables for Winsor and trimmed statistics.

data ex12;
   length id 8;
   do id=1 to 10000;
      x1 = ranuni(101);
      x2 = 10*ranuni(201);
      x3 = 100*ranuni(301);
      output;
   end;
run;

ods output Winsor=Winsor;
ods output Trim=Trim;
ods listing close;
proc hpbin data=ex12 NUMBIN=10 WINSOR WINSORRATE=0.05;
   input x1-x2;
run;
ods listing;

The preceding statements generate Output 4.4.1 and Output 4.4.2.

Output 4.4.1: PROC HPBIN Winsorized Statistics

The HPBIN Procedure

Winsorized Statistics
Variable	Mean	Std Error Mean	N Left Tail	Percent Left Tail	N Right Tail	Percent Right Tail	DF
x1	0.50175743	0.00316436	500	5	501	5.01000000	8998
x2	5.03025502	0.03185024	500	5	501	5.01000000	8998

Output 4.4.2: PROC HPBIN Trimmed Statistics

Trimmed Statistics
Variable	Mean	Std Error Mean	N Left Tail	Percent Left Tail	N Right Tail	Percent Right Tail	DF
x1	0.50209276	0.00316434	500	5	501	5.01000000	8998
x2	5.03201037	0.03185006	500	5	501	5.01000000	8998