Parameters

 Keyword   Posn  Type       Description
 -------   ----  ----       -----------
 INP1        1   CHARACTER  First input dataset
 INP2        2   CHARACTER  Second input dataset
 SUBSET      3   INTEGER    2 or 3 numbers indicating which
                            input items are to be used.
 OUT         4   CHARACTER  Output dataset
   -> GLOBAL.BINDS (the current binned dataset)
 MARKER      -   LOGICAL    Set output graphics style to
                            markers.
   Hidden default Y