Good afternoon!
   
  I'm trying to use the survey package to get a better point of view for my data, but i need some piece of advice:
   
  i have some data from a survey which has been stratified using 2 criteria: region(7 values), size of locality(5 values)  Using the survey pakage how can i define in a correct way this design (taking into account all 4 strata not just one as in the Survey example) 
   
  i have tried 
   
  design<- svydesign(ids=~0, strata= c(~regiune,~size_loc), data=tabel) # for 2 criteria
   
  and got this error
   
  Error in strata[, 1] : incorrect number of dimensions
  My "tabel" looks like this:
   
   cod          cantitate           pondere      regiune      size_loc      size_hh        age_hhh
740            5977.604          0.9962673       1              1               3                 52
742            13879.362         0.8674601      1              1               3                  42
  743           7876.322            0.9845403       1             1                4                 53
745            1169.084          1.1690844       1                1              3               50
  746            4430.431          0.9845403       1                1              3                50
751             3938.161          0.9845403       1               1              2                 39

   
   
  What does it mean and where was i wrong? 
   
  I'm sorry for taking up your time but i don't know how to fix my problem. Thank you!

       
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