How to search for a string in cell array in MATLAB

Question

Let s say I have the cell array   strs     HA   KU   LA   MA   TATA     What should I do if I want to find the index of  KU

User · Answer

Other answers are probably simpler for this case, but for completeness I thought I would add the use of cellfun with an anonymous function

indices = find(cellfun(@(x) strcmp(x,'KU'), strs))

which has the advantage that you can easily make it case insensitive or use it in cases where you have cell array of structures:

indices = find(cellfun(@(x) strcmpi(x.stringfield,'KU'), strs))

User · Answer

I guess the following code could do the trick   strs     HA   KU   LA   MA   TATA   ind find ismember strs  KU      This returns  ans         2

User · Answer

Most shortest code   strs     HA   KU   LA   MA   TATA       ind  ismember  KU   strs    But it returns only first position in strs  If element not found then ind 0

User · Answer

I see that everybody missed the most important flaw in your code    strs     HA   KU   LA   MA   TATA     should be   strs     HA   KU   NA   MA   TATA      or  strs     HAKUNA   MATATA     Now if you stick to using  ind find ismember strs  KU      You ll have no worries

User · Answer

gt  gt  strs     HA   KU   LA   MA   TATA     gt  gt  tic  ind find ismember strs  KU     toc   Elapsed time is 0 001976 seconds    gt  gt  tic  find strcmp  KU   strs    toc   Elapsed time is 0 000014 seconds   SO  clearly strcmp  KU   strs  takes much lesser time than ismember strs  KU

User · Answer

Since 2011a  the recommended way is   booleanIndex   strcmp  KU   strs    If you want to get the integer index  which you often don t need   you can use   integerIndex   find booleanIndex     strfind is deprecated  so try not to use it

User · Answer

The strcmp and strcmpi functions are the most direct way to do this  They search through arrays   strs     HA   KU   LA   MA   TATA   ix   find strcmp strs   KU

User · Answer

did you try  indices   Find strs   KU     see link  alternatively    indices   strfind strs   KU      should also work if I m not mistaken

[string] How to search for a string in cell array in MATLAB?

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