how to change matrix element from zero to 1

hello i have one matrix 4 by 4 which only it has few zero element how can i say it check the element if less than one then change it to one ?

Answer 1

[the cyclist]

If A is your matrix,

A(A<1) = 1

[amina shafanejad]

how if i want to lose loop for it is there any solution

[Walter Roberson]

for K = 1
  A = max(A,1);
end

[Stephen23]

Why use a loop for this? It is faster and neater using the cyclist's vectorized code.