Creating a function that identifies repeated items in a vector

I need help with creating this repeat function.

Write a function, repeat, that takes as input a vector of arbitrary length whose elements appear in random order. Determine whether the vector contains any repeated items. If it does, return true (1). Otherwise, return false(0). Test it in a program on the following vector: 11 22 33 44 55 66 77 99 11 102

[Azzi Abdelmalek]

What is the expected result?

[per isakson]

Homework? What you done so far?

Answer 1

[Mohammad Abouali]

testVector=[11 22 33 44 55 66 77 99 11 102];

result=(numel(testVector)~=numel(unique(testVector)))

if testVector has repeated item results would be true; otherwise it would be false.

[Sang Yeob Kim]

Based on your answer, I created the the function.

function repeat(v)
  result=(numel(v)~=numel(unique(v)))
end

And I ran the program with the following:

>> w = [11 11 22 33 44]
w =
    11    11    22    33    44
>> repeat(v)
result =
     0

This should give out 1. I don't understand

[Image Analyst]

You forgot to pass anything back! You need to pass "result" back out:

function result = repeat(v)
  result = (numel(v) ~= numel(unique(v)));
end

Please mark the Answer as accepted if that works.