MATLAB: For loop that changes specific letters to numbers

for loophomework

I want to replace the vowels AEIOU with the number 0 and all other letters with the number 1. For example the output should be ans = [0 1 1 1 0] if the user inputs apple. I know I must be misunderstanding how to get the loop to go through my whole string. This is what I have managed so far. 
party = input('What is your answer? ', 's');
n = length(party)
for i = 1:n
    if i == 'A'
       disp(0)
    elseif i == 'B'
        disp(1)
    elseif i == 'C' 
        disp(1)
    end
end

Best Answer

party = input('What is your answer? ', 's');
n = length(party)
for i = 1:n
    if party(i) == 'A'
       party(i) = 0;
    elseif i == 'B'
       party(i) = 1;
    elseif i == 'C' 
       party(i) = 1;
    end
end
disp( double(party) )
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