The HPDMDB Procedure

The statistics recorded for numeric variables are detailed in the section VAR Statement.

For classification variables, a level is a distinct observed value after formatting, removal of beginning and ending white space, and capitalization. For example, the values MyLevel and MYLEVEL are treated as a single level in the data set. Classification variables can be numeric, and the same levelization rules apply. For example, 3.000002 and 3.0000001 are treated as the same level if they are formatted using BEST3.

Frequencies should be integers. If a noninteger frequency is specified, it is rounded to the nearest integer for calculations. Weights do not need to be integers. Negative frequencies and weights are treated as 0.