how to skip the index of array

i have the index array =[1,2,1,2,4]

the output matrix =[2,3,4,5,6]

the second output matrix=[1,3,4,5,6]

the third output matrix=[2,3,4,5,6]

and so on

Answer 1

[Tommy]

Alternatively,

idx = [1,2,1,2,4];
N = 6; % max index

out = repmat(1:N, numel(idx), 1)';
out = reshape(out(out ~= idx), [], numel(idx))';

The rows in out are your outputs:

>> out

out =

     2     3     4     5     6
     1     3     4     5     6
     2     3     4     5     6
     1     3     4     5     6
     1     2     3     5     6

Answer 2

[Stanislao Pinzón]

Maybe something like this:

A = [1,2,1,2,4];
for i=1:length(A)
     B=1:6;
     B(A(i))=[];
     disp(B);
end