MATLAB: How to create a matrix of alternating 1s and 0s for any size matrix

MATLABmatricesmatrixmatrix manipulationmodonestoeplitzzeros

I am trying to script that will display a square matrix of alternating 1s and 0s.
ex: 1 0 1 0
    0 1 0 1
    1 0 1 0
    0 1 0 1
I have found that my solution works only for odd values of n, but not even values of n.
Here is what I have so far:
function y=exercise1(n)
%create a square matrix of size n x n
if rem(n,2)== 0
m = zeros(n,n);%displays a matrix of zeros
m(1:2:end,2) = 1 %extracts odd elements from column 2 and makes them a 1
m(2:2:end,1) = 1 %extracts even elements from column 1 and makes them 1
else 
    mod(n,n)
m = zeros(n,n);%displays a matrix of zero
m(1:2:end) = 1 %extracts all odd elements and makes them a one
end

Best Answer

You could use toeplitz for this:
>> toeplitz(mod(1:n,2))
ans =
   1     0     1     0
   0     1     0     1
   1     0     1     0
   0     1     0     1
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