How to remove repeating characters in a character array?

7 次查看（过去 30 天）

Rui Xu 2021-11-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1598584-how-to-remove-repeating-characters-in-a-character-array

评论： Stephen23 2021-11-29

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

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Adam Danz 2021-11-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1598584-how-to-remove-repeating-characters-in-a-character-array#answer_843124

See unique.

5 个评论
显示 3更早的评论隐藏 3更早的评论

Adam Danz 2021-11-29

Note Stephen's use of column vectors. If M is a row vector you won't be able to use this method.

Stephen23 2021-11-29

@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']."

请先登录，再进行评论。