* create 2^4 design with 4 factors in 4 blocks;

%design2
/* design2.mac inputs for block example
Command ===>
   ENTER THE NUMBER OF FACTORS                             4

   ENTER THE NAME OF THE FIRST FACTOR                      a
   ENTER THE NAME OF THE SECOND FACTOR                     b
   ENTER THE NAME OF THE THIRD FACTOR                      c
   ENTER THE NAME OF THE FOURTH FACTOR                     d


   ENTER THE SIZE OF THE FRACTION (E.G. 8 FOR A 1/8TH FRACTION)      1

   ENTER THE NUMBER OF BLOCKS                              4
   ENTER THE MAXIMUM SIZE INTERACTION
   TO DISPLAY IN THE ALIAS STRUCTURE                       4

   ENTER THE NAME OF THE SAS DATA SET TO STORE THE DESIGN  des
*/
* This macro gives I=AB=CD=ABCD as the generators;
* In class we used I=AD=ABC=ACD;
* Therefore, the blocks will be different;