MATLAB: Check if elements in an array are equal to 0 1 or 2

arrays

i have been given a random sqaure matrix. how do i check that all the elements witihin my array are equal to 0,1 or 2?

Best Answer

"how do i check that all the elements witihin my array are equal to 0,1 or 2? "
>> A = randi([0,2],4) % should pass
A =
   1   0   0   2
   1   2   0   2
   2   0   2   2
   1   1   1   1
>> all(ismember(A(:),0:2))
ans = 1
>> A = randi([0,9],4) % should fail
A =
   8   0   3   0
   6   6   3   6
   6   0   5   1
   4   2   1   1
>> all(ismember(A(:),0:2))
ans = 0
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