Get the index for the search of multiple strings within an array of strings

Question

JoseLuis 2012-7-12

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https://ww2.mathworks.cn/matlabcentral/answers/43461-get-the-index-for-the-search-of-multiple-strings-within-an-array-of-strings

评论： Stephane 2020-2-2

Hi,

I have a (1x128) cell array like this: "list" = 'S01R' 'S02R' 'S03R'... etc And another short (1x16) cell array with the same type of characters, eg, "bad" = 'S01R' 'S02R' 'S03R'... etc

I want to know the index of my "list" where I may found the items listed in "bad", I'v tried regexp but this function only allow me to find single strings in my list, Also, I don't know how to get the index in a orderer list instead of a cell array like this c=[] [] [] [1] [] [] [] [] []

Thanks for any idea,

JL

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Jan 2012-7-12

Please post examples in valid Matlab code, such that they can be used directly in an answer by copy&paste.

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Answer 1

Jan 2012-7-12

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https://ww2.mathworks.cn/matlabcentral/answers/43461-get-the-index-for-the-search-of-multiple-strings-within-an-array-of-strings#answer_53353

See FEX: CStrAinBP: Reply the indices of common strings.

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Answer 2

Ryan 2012-7-12

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https://ww2.mathworks.cn/matlabcentral/answers/43461-get-the-index-for-the-search-of-multiple-strings-within-an-array-of-strings#answer_53354

编辑：Ryan 2012-7-12

在 MATLAB Online 中打开

Is this what you were looking for?

   list = {'bad','worse','good','okay'};
   badlist = {'bad','worse'};
   idx = ismember(list,badlist);

This returns:

idx = 1 1 0 0;

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Dhruv Ghulati 2015-12-21

This works for exact text search, but not for if a string contains a particular set of characters. I find strfind() a better approach if you have that particular use case.

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