
Dear all, I have two vector:
 strata response1   11   21   32   12   22   3.  ..  ..  .10  110  210  3.  ..  ..  .100  1100  2100  3 
I need to get a stratified random sample of size = 100, such that:
if I select response = 1 in strata 1 then I need sample 2 or 3 in strata 2
 
if I select response = 2 in strata 2 then I need to sample 1 or 3 in strata 3
if I select response = 3 in strata 2 then I need to sample 1 or 2 in strata 3
and so on. Please, how can I do this?
      Best regards
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