Is it possible to rotate the data inside each cell of a cell array

Question

Aaron Smith 2017-7-5

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https://ww2.mathworks.cn/matlabcentral/answers/347449-is-it-possible-to-rotate-the-data-inside-each-cell-of-a-cell-array

评论： Ijaz Ahmad 2021-11-24

I have a cell array containing a matrix inside of each cell. I need to rotate the matrices. I have already found the rot90 command which works fine for the individual matrix oor for rotating the cells of a cell array. My query is, is it possible to rotate each of the matrices without doing it individually?

I was looking at using cellfun to attempt to do this

cellfun(rot90(finishCell{k}, 3));

This appears to manipulate the cells of the cell array and not the data inside

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Answer 1

Jan 2017-7-5

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https://ww2.mathworks.cn/matlabcentral/answers/347449-is-it-possible-to-rotate-the-data-inside-each-cell-of-a-cell-array#answer_272968

在 MATLAB Online 中打开

While

C = cellfun(@rot90,C,'uni',0)

creates a copy of C, such that the double size of memory is required temporarily, a loop creates the duplicates one after the other:

for iC = 1:numel(C)
  C{iC} = rot90(C{iC});
end

This might avoid the memory problems.

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Valentino Cristini 2021-9-22

Hi, how would you add the k factor (how many times it shoud rotate the array by 90 degrees)?

Ijaz Ahmad 2021-11-24

在 MATLAB Online 中打开

k = randi([0,3], [1,numel(C)]);
for iC = 1:numel(C)
    C{iC} = rot90(C{iC}, k(iC));
end

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Is it possible to rotate the data inside each cell of a cell array

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Is it possible to rotate the data inside each cell of a cell array

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