# matching the element of matrix with an array

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Mausmi Verma on 29 Nov 2021
Commented: Mausmi Verma on 30 Nov 2021
Suppose i have an array as,
A={ [2,3;2,7] [3,2;3,4;3,8] [4,3;4,5] [5,4;5,10] [7,2;7,8;7,12] }
and a matrix as B=[17,8,14,4,18]
now i want to match the element from B with A and want answer as
C={ [ ] [3,4 ; 3,8] [4] [5,4] [7,8] }
plz help
Jan on 29 Nov 2021
A general hint: The cell array contains matrices, which consist of numbers. Explain problem in the terms Matlab can work with. "routes" and "nodes" are the meaning of the numbers, but this does not matter for Matlab, so it does not for solving the problem.
There is no need for apologies: It is a standard step in solving a problem to ask questions for clarifications. Your question about Matlab are welcome here.

Jan on 29 Nov 2021
A = {[2,3;2,7], [3,2;3,4;3,8], [4,3;4,5], [5,4;5,10], [7,2;7,8;7,12]};
B = [17,8,14,4,18]
B = 1×5
17 8 14 4 18
C = cell(size(A));
for iA = 1:numel(A)
a = A{iA};
match = any(ismember(a, B), 2);
if any(match)
C{iA} = a(match, :);
end
end
celldisp(C)
C{1} = [] C{2} = 3 4 3 8 C{3} = 4 3 4 5 C{4} = 5 4 C{5} = 7 8
% C={ [ ] [3,4 ; 3,8] [4] [5,4] [7,8] }
Mausmi Verma on 30 Nov 2021