Finding index of a found string inside a string array

Hi there i'm trying to code a polybius square cipher in matlab. I am trying to find the index if the current character in the alphabet string which is a 5*5 string array. 

grid = ["A", "B", "C", "D", "E";
         "F", "G", "H", "I/J", "K";
         "L", "M", "N", "O", "P";
         "Q", "R", "S", "T", "U";
         "V", "W", "X", "Y", "Z"
         ];
characterindex = strfind(grid, "letter");

I need character index to return an index rather than 5*5 cell array so i can find the corrisponding index.

Help would be hugely appreciated,

many thanks

[Stephen23]

Original question by Rahim Neal Yakoob retrieved from Google Cache:

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https://web.archive.org/web/20230221164347/https://www.mathworks.com/matlabcentral/answers/489630-finding-index-of-a-found-string-inside-a-string-array

Finding index of a found string inside a string array

Hi there i'm trying to code a polybius square cipher in matlab. I am trying to find the index if the current character in the alphabet string which is a 5*5 string array.

grid = ["A", "B", "C", "D", "E";
    "F", "G", "H", "I/J", "K";
    "L", "M", "N", "O", "P";
    "Q", "R", "S", "T", "U";
    "V", "W", "X", "Y", "Z"
    ];
characterindex = strfind(grid, "letter");

I need character index to return an index rather than 5*5 cell array so i can find the corrisponding index.

Help would be hugely appreciated,

many thanks

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Walter Roberson]

[row, col] = find(contains(grid, "letter"));

Caution: this would work even for "/" because that is present in your "I/J" string. The code makes no attempt to be smart about what is stored at the locations.