MATLAB: I make mistakes while creating a matrix

forfor loopmatrixmatrix array

DNdog =[2;2;2;3;3;3;5;5]
BNdog =[3;5;6;2;5;6;2;3]
blnmynokta =[2;5;6]
aik0 =[0.289528073170415
   0.330368386539138
   0.339433756993357
   0.289527607389207
   0.407152568064959
   0.424260572052654
   0.330366215572373
   0.407154361068522]
bik0 =[-0.289528073170415
  -0.330368386539138
  -0.339433756993357
  -0.289527607389207
  -0.407152568064959
  -0.424260572052654
  -0.330366215572373
  -0.407154361068522]
for i = 1:length(DNdog)
  for j = 1:(length(blnmynokta))
      if DNdog(i) == blnmynokta(j)
          Adog1(i,2*j-1:2*j) = [aik0_dog(i,1) bik0_dog(i,1)]
      elseif BNdog(i) == blnmynokta(j)
          Adog1(i,2*j-1:2*j) = [-aik0_dog(i,1) -bik0_dog(i,1)]
      else 
          Adog1(i,2*j-1:2*j) = [0 0]
      end
  end
end
% This is the resulting matrix
  Adog1=[0.289528073170415  -0.289528073170415  0  0  0  0
  0.330368386539138  -0.330368386539138  -0.330368386539138  0.330368386539138  0  0
  0.339433756993358  -0.339433756993358  0  0  -0.339433756993358  0.339433756993358
  -0.289527607389207  0.289527607389207  0  0  0  0
  0  0  -0.407152568064959  0.407152568064959  0  0
  0  0  0  0  -0.424260572052654  0.424260572052654
  -0.330366215572373  0.330366215572373  0.330366215572373  -0.330366215572373  0  0
  0  0  0.407154361068522  -0.407154361068522  0  0]
% This is the matrix I have to find. But I could not.
   ADOG=[0.289528073170415                   0                   0
     0.330368386539138  -0.330368386539138                   0
     0.339433756993358                   0  -0.339433756993358
    -0.289527607389207                   0                   0
                     0  -0.407152568064959                   0
                     0                   0  -0.424260572052654
    -0.330366215572373   0.330366215572373                   0
                     0   0.407154361068522                   0]

Best Answer

Muhendisleksi - I think that you can simplify your code to populate Adog1 to be the following
 Adog1 = zeros(length(DNdog),length(blnmynokta)); % pre-size Adog1
 for i = 1:length(DNdog)
    for j = 1:(length(blnmynokta))
        if DNdog(i) == blnmynokta(j)  % if the coefficient matches then put in Adog1
            Adog1(i,j) = aik0(i);
        end
        if BNdog(i) == blnmynokta(j)  % do the same comparison for BNdog
            Adog1(i,j) = bik0(i);
        end
    end
 end
Try the above and see what happens!
Related Question