Permutation and combination to flip the numbers in the array

There is a set of numbers such as [1 0 1 0 1 1], and now I need to flip two of them arbitrarily, such as flipping the first and the second, then the result is [0 1 1 0 1 1], I need to enumerate all flipped result.

The array (only 01) and the number of flips are variables. How to write a program?

[KSSV]

Read about circshift, perms.

[Yang Metin]

Can you give the code? I don't know how to use these two functions to achieve the desired effect.

[Yang Metin]

I have no ideas

[Yang Metin]

omg.....Does anyone give ideas?

[Abhishek Gangwar]

Give a proper example, that will be better to understand the problem statement.

[Yang Metin]

Give a more detailed example

[1 1 1 1 1] The result of flipping 2 is

[0 0 1 1 1], [1 0 0 1 1], [1 1 0 0 1], [1 1 1 0 0], [0 1 0 1 1], [0 1 1 0 1], [0 1 1 1 0], [1 0 1 0 1], [1 0 1 1 0] etc.

Flip means 0->1,1->0.

I need all the results, including more 01 combinations and the number of flips.

Answer 1

[Bruno Luong]

A = logical([1 0 1 0 1 1])
nflip = 2;

m = size(A, 2);
j = nchoosek(1:m, nflip);
i = repmat((1:size(j,1))', [1,size(j,2)]);
mask = accumarray([i(:) j(:)], 1);
F = xor(A,mask)

Result

A =

  1×6 logical array

   1   0   1   0   1   1


F =

  15×6 logical array

   0   1   1   0   1   1
   0   0   0   0   1   1
   0   0   1   1   1   1
   0   0   1   0   0   1
   0   0   1   0   1   0
   1   1   0   0   1   1
   1   1   1   1   1   1
   1   1   1   0   0   1
   1   1   1   0   1   0
   1   0   0   1   1   1
   1   0   0   0   0   1
   1   0   0   0   1   0
   1   0   1   1   0   1
   1   0   1   1   1   0
   1   0   1   0   0   0

Answer 2

[Bruno Luong]

If I understand the question correctly

A0=[1 0 1 0 1 1]

% A1 is all possible single swap (permutation of 2 elements) of
% binary vector A0 (Note: A0 itself is not listed)
i0=find(A0==0);
i1=find(A0==1);
[i0,i1]=ndgrid(i0,i1);
n=numel(i0);
A1=repmat(A0,n,1);
r=(1:n)';
A1(sub2ind(size(A1),r,i0(:)))=1;
A1(sub2ind(size(A1),r,i1(:)))=0;

% Display
A1

If you want to enumerate 2 swaps just iterate the above procedure again on the row results.

Etc...

[Yang Metin]

I wrote a more detailed example in the topic comment, what you gave is part of it.

[Bruno Luong]

OK, I missunderstood because you wrote "permutation" is the subject, which usually meant shuffle the array.

Solution is on the other ANSWER