(When the DATA step reads a SAS data set, SAS reads the data directly into the program data vector.) program data vector (PDV) is a logical area in memory where SAS builds a data set, one observation ...

The _N_ variable represents the number of times the DATA step has iterated. The _ERROR_ variable acts like a binary switch whose value is 0 if no errors exist in the DATA step, or 1 if one or more ...