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rhapsody
Calcite | Level 5

I have an arrays like this

 

data prob_matrix;

set B_estimates;

  

 

array theta theta1-theta9;

 

end;

 

 

 

 Where theta1 to theta9 are 9 columns from a 9by9 matrix. Now I want to convert the Array theta into a long row. The resulting row vector is then 9*9=81 cells wide, since row 1,2 3 etc from theta are put next to eachother

 

1 REPLY 1
RW9
Diamond | Level 26 RW9
Diamond | Level 26

Well, I would advise that that is not the best layout, going the other way would be more beneficial, i.e. having 81 records and 2 columns.  Far easier to work with.  Anyways something like - and note that this is not tested as you have not provided test data in the form of a datastep.

 

data want (drop=i);
  set have end=last;
  array final{81} 8;
  retain final:;
  array theta{9};
  if _n_=1 then mult=0;
  do i=1 to 9;
    final{(mult*9)+i}=theta{i};
  end;
  if last then output;
run;

 

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