Converting cell array to matrix

Question

Mark Coughlin 2020-12-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/676243-converting-cell-array-to-matrix

评论： Mark Coughlin 2020-12-3

Hi,

I have a 1x650 cell array (centroid1) which contains two values, an x and y coordinate in a (1,2) matrix. How do I convert this cell array into a (:,2) matrix containing the relevant coordinates in each row?

Below is my attempt, but this converts the cell array wih just 1 row.

coord = cell2mat(centroid1)

Thanks

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Answer 1

Ameer Hamza 2020-12-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/676243-converting-cell-array-to-matrix#answer_564278

编辑：Ameer Hamza 2020-12-3

在 MATLAB Online 中打开

Use vertcat()

coord = vertcat(centroid1{:})

following should also work

coord = cell2mat(centroid1.')

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Mark Coughlin 2020-12-3

Brilliant! Thank you

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Answer 2

Fangjun Jiang 2020-12-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/676243-converting-cell-array-to-matrix#answer_564283

在 MATLAB Online 中打开

>> a={[1 2],[3 4]}
a =
  1×2 cell array
    {1×2 double}    {1×2 double}
>> cell2mat(a)
ans =
     1     2     3     4
>> cell2mat(a')
ans =
     1     2
     3     4