Delete empty rows from Cell array

Question

lucksBi 2017-2-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327327-delete-empty-rows-from-cell-array

评论： Kristoffer Walker 2019-7-1

Hi, I have this Cell array and i want to remove all the [] rows from all pages. I have tried almost everything related to this topic but nothing worked Thank you in advance for your help.

val(:,:,1) =

    [44]
    [33]
    []
    []
    []
    []
    []
    []
    []
    []

val(:,:,2) =

    [44]
    [33]
    []
    []
    []
    []
    []
    []
    []
    []

val(:,:,3) =

    []
    []
    [11]
    [44]
    [33]
    []
    []
    []
    []
    []

val(:,:,4) =

    []
    []
    [11]
    [44]
    [33]
    []
    []
    []
    []
    []

val(:,:,5) =

    []
    []
    [11]
    [44]
    [33]
    []
    []
    []
    []
    []

val(:,:,6) =

    []
    []
    []
    []
    []
    [44]
    [22]
    []
    []
    []

val(:,:,7) =

    []
    []
    []
    []
    []
    [44]
    [22]
    []
    []
    []

val(:,:,8) =

    []
    []
    []
    []
    []
    []
    []
    [11]
    [22]
    [33]

val(:,:,9) =

    []
    []
    []
    []
    []
    []
    []
    [11]
    [22]
    [33]

val(:,:,10) =

    []
    []
    []
    []
    []
    []
    []
    [11]
    [22]
    [33]

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Answer 1

Jan 2017-2-28

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327327-delete-empty-rows-from-cell-array#answer_256660

在 MATLAB Online 中打开

You have not tried "almost everything", but even "everything which works", in other words: This cannot work. A cell array must have the same number of elements for all rows and columns, as every other element. You cannot remove the empty elements from it and keep the positions of the non-empty elements at the same time. But you can get rid of the empty elements:

fullVal = val(~cellfun('isempty', val'));

But then val is not a 3D cell array anymore.