The HPFOREST Procedure

The variable in the FREQ statement identifies a numeric variable in the data set that contains the frequency of occurrence for each observation. PROC HPFOREST accepts any positive value of a frequency variable without converting the value to an integer. If the frequency value is missing or less than or equal to 0, the observation is not used in the analysis. When the FREQ statement is not specified, each observation is assigned a frequency of 1.