function negativeOnesReplacingZeroes = replaceZeroes(myArray,myLen)

for i=1:myLen
    if (myArray(i) == 0)
        myArray(i) = -1;
    end
end

negativeOnesReplacingZeroes = myArray;

end
Not enough input arguments.

Error in replaceZeroes (line 3)
for i=1:myLen