find the row and column value of a specific value in cell array

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Elysi Cochin
Elysi Cochin on 13 Apr 2021
Commented: Rik on 13 Apr 2021
i have a cell array with values
cellarr = {'a','b','c',3,5;'b',5,'a',[],[];'a','c',3,'a',4;'b','a','c','c',3};
i wanted to find the location where a particular number or string occurs
for example i want to get the location where the number = 3
so my expected output is
1st row 3rd column
3rd row 3rd column
4th row 5th column
[row,col] = find(___)
i want both the row and column position as it comes for find function
find not working with cell array
Xingwang Yong
Xingwang Yong on 13 Apr 2021
After using find(), you just need to convert the linear index into row and col index, see ind2sub

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Accepted Answer

Rik on 13 Apr 2021
You need to use a bit of trickery to use find (ismember will not work normally either).
cellarr = {...
'a','b','c', 3 ,5;...
'b', 5 ,'a',[] ,[];...
'a','c', 3 ,'a',4;...
[row,col] = find(cellfun(@(x) isequal(val,x),cellarr));
ans = 3×2
3 3 1 4 4 5
Rik on 13 Apr 2021
This is the default order for find, but you can use sort (and its second output) to sort on row instead of column.

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