could anyone help me to fix the following issue

A =[1     2     3     4     5  31; 
    6     7     8     9    10  32;
     11    12    13    14    15 33;
    21    22    23    24    25  34;
    26    27    28    29    30 35]
B =[
     0     0    41     0     0  0;
    45     0     0     0     0  0;
     0    43     0     0     0  49;
     0     0     0    42     0  0;
     0     0     0     0    44  0]
%  A=rand(50,100)
% B=diag(randi([1 10],50,1))

N_G=2 %No of group
            R = cell(N_G,1)
            sumR = cell(N_G,1)

             for d=1:1:N_G
    %------------------------------------------
    %   select No of UE randomly
    %------------------------------------------
                  if d==N_G
                      sz=length(B(:,1))
                      e=sz
                  else
                      if d==1
                          e=randi([2 3])% select No of UE randomly
                      else
                          sz=length(B(:,1))
                          sz=ceil(sz/2)
                          e=randi([1 sz])% select No of UE randomly

                      end
                  end
    %------------------------------------------
                  idx=randsample(1:size(B,1),e)
    %------------------------------------------
    %   Getting arry A and B from random index 
    %------------------------------------------  
                  for i=1:length(idx)
                  X(i,:) = B(idx(i),:)
                  Y(i,:) = A(idx(i),:)
                  Xi(i)=find(X(i,:))    
                  end
                  X=[X(1:i,:)]
                  Y=[Y(1:i,:)]

    %------------------------------------------
    %   Replacing  
    %------------------------------------------           
                 non_0=sum(X)
                 non_0=repmat(non_0,i,1)
                 S=X
                 S(non_0 & X==0)=Y(non_0 & X==0)
                 G{d}=S
    %-----------------------------------------------------
    %   deleting the first output from the main array  
    %-----------------------------------------------------
                  A(idx,:) = []
                  B(idx,:) = [] 

             end

            C=[G{1};G{2}]

If i run the code i am getting In an assignment  A(I) = B, the number of elements
in B and I must be the same.

Error in (line 47) Xi(i)=find(X(i,:))

Could anyone help me to overcome this error.

[John D'Errico]

It seems like you will ask this question a dozen times or more. Please stop asking it over and over again.

[Prabha Kumaresan]

Sorry. but the error in the code has not be overcomed which keeps me to ask again

[Stephen23]

duplicate

Answer 1

[Tamir Suliman]

I think may be you should check the idx