How do I move certain rows up or down in a cell array?

Question

Ziggy Zigg 2012-10-23

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I have a cell array, which is sorted alphabetically. I need to move any row that contains a marker (for example, X), to the top of the list. How do I do that?

e.g.:

AAA AAB FFF FTD JJJ XXX XXY ZAF ZAE

So, I just need to move XXX and XXY to the beginning, and the rest of the array should remain the same.

Does anyone know of a script to do this automatically?

Thanks

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Answer 1

Matt J 2012-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/51678-how-do-i-move-certain-rows-up-or-down-in-a-cell-array#answer_63007

编辑：Matt J 2012-10-23

在 MATLAB Online 中打开

idx=~cellfun('isempty', strfind(yourcell,'X'));
yourcell=yourcell(:).';
yourcell=[yourcell(idx), yourcell(~idx)];

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Matt J 2012-10-23

Yes. If your cell array is really vertical and you want to keep it that way, just delete the 2nd line and concatenate vertically in the final line.

Ziggy Zigg 2012-10-23

Thanks Matt. I had another problem while using this. I had used a cell sorting function, for which I had to convert the cell array to char. So in Workspace, the cell contents show up with three apostrophes. This causes the strfind to not work (error: If any of the input arguments are cell arrays, the first must be a cell array of strings and the second must be a character array). If I do a 'iscellstr' to my array, it returns 1, meaning it is a cell array of strings. Do you know what those three apostrophes mean? I'm not familiar with that. Also, if I delete another column in that cell array, the apostrohes disappear, and now I can use the code you pasted, no problem. I'm stumped.

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