MATLAB: How to assign rows of a matrix to an array

matrixmatrix arraynum2cell

So I have a Matrix, say A =[1,2,3;4,5,6;7,8,9]

I need to create an array of [4,5,6;7,8,9]

I have been trying a thousand variations of B= num2cell(A(2,:)) and B= num2cell(A(3,:))

but all I can create is obviously just an array of either 4,5,6 or 7,8,9 not them combined.

Any advice?

Best Answer

Don't mess with cells - too complicated. Just index the rows:

b = A(2:3, :)  % Extract rows 2 to 3 only.

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MATLAB: Delete matrix in cell

cell_A={[1 1 1]  [1 2 3;3 2 1]  [4 5 6;7 8 9;1 1 1]  [2 2 2;3 3 3]  [9 9 9]};
cell_B={[1 1 1]  [1 2 3;3 2 1]   [9 9 9]};
m = length(cell_A) ; 
n = length(cell_B) ; 
iwant = cell_A ; 
for i = 1:m
    for j = 1:n
       if isequal(cell_A{i},cell_B{j})            
           iwant{i} = [] ;
       end
    end
end
% Remove empty cells
idx = cellfun(@isempty,iwant) ;
iwant(idx) = [] ;
celldisp(iwant)

Best Answer

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