FREQ variable ;

The FREQ statement names a variable that contains the frequency of occurrence of each observation. The GENESELECT procedure treats an observation as if it appears times, where is the value of the FREQ variable for the observation. The value of can be fractional to indicate a partial observation. If the value of is close to zero, negative, or missing, the observation is ignored. When the FREQ statement is not specified, each observation is assigned a frequency of one.