can anyone help me to solve the error

clear all;
clc;
N_UE=[2 4 6 8 10];
N_SC=[12 14 16 18 20];
for t= 1:length(N_UE)
for r = 1:length(N_SC)
 C=rand(N_UE(t),N_SC(r));
 N_G=4;%No of group
B = cell(N_G,1);
sumB = cell(N_G,1);
C_copy = C;
for d=1:1:N_G
 if d==N_G
 sz=length(C_copy(:,1));
 e=sz;
 else
                  if d==1
                        e=randi([2 5]);% select No of UE randomly
                    else
                        sz=length(C_copy(:,1));
                        sz=ceil(sz/2);
                        e=randi([1 sz]);% select No of UE randomly

                      end
                  end
                  idx=randsample(1:size(C_copy,1),e);
                  B{d} = C_copy(idx,:);
                  C_copy(idx,:) = [];
                  [rows, columns] = size(B{d});
                  % Get sum of columns and replicate vertically.
                  sumB{d} = repmat(sum(B{d},1), [rows, 1]);
  end
   E=[sumB{1}; sumB{2};sumB{3};sumB{4}];
      end
  end

If i run the code i am getting Error using randsample (line 131) K must be less than or equal 2 for sampling without replacement.

Error in test (line 35) idx=randsample(1:size(C_copy,1),e);

Please help me to solve this issue.

[Image Analyst]

OK, so . . . what is your K?

http://blogs.mathworks.com/videos/2012/07/03/debugging-in-matlab/

[Prabha Kumaresan]

No K in my code but when i run the code it displays the error in the way.I have also attached the image of it.

Answer 1

[Walter Roberson]

You ended up with a value of e that was 3 or more when you only had two rows in C_copy