Check if a value is within one of the cells in a cell array

Question

Adel Hafri 2022-3-9

评论： Sergio Rojas Blanco 2022-8-14

For example, i have this cell array y and i want to see if 6 is included in index 1 of any of the cell arrays , how can i do that ?

y={[1,2],[2,3.51],[2,5],[2,6]};

Answer 1

Jan 2022-3-9

编辑：Jan 2022-3-9

Working with cells makes it harder. If you only want to know, if any 6 is contained:

y = {[1,2],[2,3.51],[2,5],[2,6]};
T = any(cat(2, y{:}) == 6)
T = logical
   1
T = any(cat(2, y{:}) == 7)
T = logical
   0

If all cell elements are [1 x 2] vectors, you could determine the cell index also:

X = cat(1, y{:});
[r,c] = find(X == 6)
r = 4
c = 2

If the cell contains arrays with not matching dimensions, a loop is an easy solution:

T = false;
for k = 1:numel(y)
   if any(y{k}(:) == 6)
      T = true;
      break;   % Leave loop at first match
   end
end

I don't know if this worked to Adel but it did for me. Thank you Jan