Intersect  Function SummarySummary:Create a new value that is the intersection of the two arguments. Usage:intersect ser1 ser2 Arguments:ser1  first set (must be: series bitset) ser2  second set (must be: series bitset) Refinements:/case  Uses casesensitive comparison. /skip  Treat the series as records of fixed size size  The size argument. (must be: integer) Description:Returns all elements within two blocks or series that exist in both.
To obtain a unique set (to remove duplicate values) you can use UNIQUE. Note that performing this function over very large data sets can be CPU intensive. Related:difference  Return the difference of two data sets.
 
