The HPSPLIT Procedure

PROC HPSPLIT places interval input variables into bins. You can specify the number of bins by using the INTERVALBINS= option in the PROC HPSPLIT statement. Each bin except the last spans the range

where vmax and vmin are the maximum and minimum value of the respective variable and bin is the bin, which is an integer in the range

For the largest bin, the end of the bin range is inclusive.