Sort cell numbers ?

Question

Heirleking 2022-3-22

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1677364-sort-cell-numbers

评论： Image Analyst 2022-3-23

采纳的回答： Voss

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I have a cell array that needs to be sorted both ascending and descending.

It is:

Groups = {[-83;-84] [-65] [-47;-50] [-30;-33] [-22;-26] [-15;-16] [-6; -7]}
Groups = 1×7 cell array
    {2×1 double}    {[-65]}    {2×1 double}    {2×1 double}    {2×1 double}    {2×1 double}    {2×1 double}

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Answer 1

Voss 2022-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/1677364-sort-cell-numbers#answer_924629

编辑：Voss 2022-3-23

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"What I mean is how can I organize G in this way?"

G = {[-6; -7] [-16;-15] [-26;-22] [-33;-30] [-50;-47] [-65] [-83;-84]};

Maybe like this:

G = {[-83;-84] [-65] [-50;-47] [-33;-30] [-26;-22] [-16;-15] [-6; -7]};
[~,idx] = sort(cellfun(@(x)max(abs(x)),G));
G = G(idx);
format compact
celldisp(G);
G{1} =
    -6
    -7
G{2} =
   -16
   -15
G{3} =
   -26
   -22
G{4} =
   -33
   -30
G{5} =
   -50
   -47
G{6} =
   -65
G{7} =
   -83
   -84

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Heirleking 2022-3-23

this works too! Thanks!

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Answer 2

Image Analyst 2022-3-23

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https://ww2.mathworks.cn/matlabcentral/answers/1677364-sort-cell-numbers#answer_924639

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What are you sorting on? The average value of each array? If so, try this:

% Make an unsorted G
G = {[-6; -7] [-65] [-15;-16] [-30;-33] [-22;-26] [-47;-50] [-83;-84]}
% Find means
for k = 1 : numel(G)
    theMeans(k) = mean(G{k}, 'all');
end
% Sort based on means:
[sortedMeans, sortorder] = sort(theMeans, 'descend')
% Now sort G
GSorted = G(sortorder)
celldisp(GSorted)

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Heirleking 2022-3-23

this works too, thanks!

Image Analyst 2022-3-23

OK, but you have said it works for multiple answers even though they sort it differently. I sorted by the average value and @_ sorted it by the max value. So which way is it? (In this particular case they're the same though.)

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Answer 3

Ive J 2022-3-22

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https://ww2.mathworks.cn/matlabcentral/answers/1677364-sort-cell-numbers#answer_923774

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If by sort, you mean sort within each element of cell array:

G = {[-83;-84] [-65] [-50;-47] [-33;-30] [-26;-22] [-16;-15] [-6; -7]};
Ga = cellfun(@(x)sort(x, 'ascend'), G, 'uni', false);
Gd = cellfun(@(x)sort(x, 'descend'), G, 'uni', false);