assigning answers of logical operators to a vector using a for-loop

I was asked to write a function called testLucky.m which will text if inputed values are in the "secretLucky" matrix using a for-loop. The desired output is a logical 1 or 0 representing whether the inputted value is in the matrix or not. Here's what I've got so far:

My problem is that i onlhy want one output - 0 or 1. but I can't figure out how to do it without getting 7 values enery time (for each for statement)

function[y] = testLucky(x)
% testLucky(x) - determines whether input(x) is a lucky number
%   return true (1) if x is a lucky number
%   return false (0) if x is not a lucky number

secretLucky = [19 22 5 9 11 15 21];
for k=1:7
    secretLucky(i)==x
end

end

Answer 1

[KSSV]

function y = testLucky(x)
% testLucky(x) - determines whether input(x) is a lucky number
%   return true (1) if x is a lucky number
%   return false (0) if x is not a lucky number

secretLucky = [19 22 5 9 11 15 21];
y = false ; 
for k=1:7
    if secretLucky(k)==x
        y = true ; 
        break
    end
end

end

You can also use ismember. Read about this.