I'm using SAS 9.4.  I have a dataset with the following variables: IDnum, exposures, cost. I want to divide my dataset into 25 bins of equal exposures and then calculate the average cost of each of the 25 bins. I tried the following:   proc hpbin data=TESTDATA output=out numbin=25 PSEUDO_QUANTILE;    input exposures ;    ID IDnum; run;   PROC SORT DATA=TESTDATA;       BY IDnum; PROC SORT DATA=OUT;       BY IDnum; RUN; DATA ALL;       MERGE TESTDATA OUT;       BY IDnum; RUN;   PROC MEANS DATA=ALL;       BY BIN_EXPOSURES;       VAR cost;       WEIGHT exposures;       OUTPUT OUT=TWO MEAN=AVG_cost; RUN;   PROC HPBIN does not give the equal size exposure bins. Any suggestions? ... View more