1) generate matrix that have some run to be replicated. For example if I have DSDs 6 factors with 13 runs. I want to have the same matrix with 13 runs + 2 runs that be replicated from run number 1 and run number 2, then do the loop to replace the previous selected tow runs to replicate runs number 3 and 4 on the same DSD 6 factors.
there are 6 ways to complete all possible matrix that can be done.
2) then I want to generate DSD matrix with 6 factors with 13runs + 4 runs