MATLAB: How to put matrices with different sizes together

concatenate matricesdifferent size matricesstocks

I have 20 matrices with sizes = (No of stocks x 12) for 20 years. In each year, the number of stocks is different that the 20 matrices have different sizes. I need to do the same thing with data of each year. Is there anyway that I can put all matrices together and run loop? (so that I don't have write the same code for each year separately)

Best Answer

Ha - consider using a cell array to store the differently sized matrices. Then, you can iterate over each matrix in the cell array and perform whatever operation against each one.

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newarray = cell(1, 5);
for col = 1:5
   newarray{col} = vertcat(yourcellarray{:, col});
end

MATLAB: How to put each group of cells in the same row

reshape(A, 16, [])'

reshapes your cell array in columns of 16 rows (since matlab is column major). Then transpose to have rows of 16 columns.

That's assuming you want to preserve the ordering, otherwise

reshape(A, [], 16)

which directly reshape in rows of 16 columns.

Best Answer

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MATLAB: Concatenating cells together

MATLAB: How to put each group of cells in the same row

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