How to remove repeating characters in a character array?

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Rui Xu
Rui Xu on 29 Nov 2021
Commented: Stephen23 on 29 Nov 2021
For example, I have a 4 x 2 char array, moviecountry. It looks like this, ['US'; 'FR'; 'US'; 'CA']. I would like to have another character array, states, that only stores the non-repeating elements of this array, so in this case, states = ['US'; 'FR'; 'CA']. I have the following code right now:
states = [];
for jj = 1:size(moviecountry,1)
currentcountry = moviecountry(jj,:); %set temp country and compare with other
if jj == 1
states = [currentcountry];
end
for kk = 1:size(states,1)
if ~ismember(currentcountry, states(kk, :))
states = [states;currentcountry]%only add to output if no repetition
end
end
end

Accepted Answer

Adam Danz
Adam Danz on 29 Nov 2021
See unique.
  5 Comments
Stephen23
Stephen23 on 29 Nov 2021
@Adam Danz: I just copied the char array verbatim from the question: "I have a 4 x 2 char array, moviecountry. It looks like this, ['US'; 'FR'; 'US'; 'CA']."

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