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How to loop through cell arrays

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Dan Page
Dan Page el 13 de Nov. de 2018
Comentada: Nurul Ain Basirah Zakaria el 28 de Sept. de 2020
I have a 5x5 cell array, called H, that I am trying to loop through and do an equation on each cell. How would I do this?
I am using mat2cell to split a larger image,F2, into the 5x5 cell array.
H = mat2cell(F2, [40 40 40 40 40], [48 48 48 48 48])
To access the first part of the cell array I use H{1,1} but do not know how to automaticaly move onto H{1,2} until H{1,5} then move to H{2,1}.
I hope this makes sense.
  1 comentario
Mark Sherstan
Mark Sherstan el 13 de Nov. de 2018
Does the following push you in the correct direction?
for ii = 1:5
for jj = 1:5
fprintf('%0.f %0.f\n',ii,jj)
end
end

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Respuestas (2)

Stephen23
Stephen23 el 14 de Nov. de 2018
S = size(H);
for rx = 1:S(1)
for cx = 1:S(2)
H{rx,cx}
end
end

possibility
possibility el 14 de Nov. de 2018
Hi,
First, you don't need to use cell array as your dimensions are all same. 40x48.
If you still want to work with cell array, you may try following:
h11=H{1,1}(:,:);
which converts the cell array inputs into matrix form. And then you do your equation on h11. General case,
for i=1: size(H,1) %scan rows
for j=1:size(H,2) %scan columns
hij=H{i,j}(:,:); %convert matrix form
hij_manipulated= equation (hij); %do the equation
H(i,j)={hij_manipulated}; %put it back to its original location in cell array
end
  1 comentario
Nurul Ain Basirah Zakaria
Nurul Ain Basirah Zakaria el 28 de Sept. de 2020
hello. can i use this equation for 444x200x400 double?

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