Create a Single Array From 3 different one

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Fabio Taccaliti 2022-4-29

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https://ww2.mathworks.cn/matlabcentral/answers/1708360-create-a-single-array-from-3-different-one

评论： Jan 2022-5-2

Hello,

I have 3 arrays x, y and z (each 14x4) and I want to create from these an array tot (56x3).

It should be composed taking for the first cell, the first element of array x, in the second one, the first element of array y and in the third one, the first element of array z and so on for all the elements in the sub-arrays (going row by row), how can I do it?

Basically the sub-arrays contains all the coordinated of a set of point (divinded in x, y and z) and I want to create an array with all the points and the different coordinates on the 3 columns (x, y and z).

I think I have to use 3 loops for each array, but how?

Thanks in advance

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Answer 1

Jan 2022-4-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1708360-create-a-single-array-from-3-different-one#answer_953970

编辑：Jan 2022-4-29

在 MATLAB Online 中打开

I'm not sure what "going row by row" means. Maybe

x = rand(14, 4);
y = rand(14, 4);
z = rand(14, 4);
xt = x.';
yt = y.';
zt = z.';
result = [xt(:), yt(:), zt(:)]
% or:
result = [x(:), y(:), z(:)]

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Fabio Taccaliti 2022-4-29

编辑：Fabio Taccaliti 2022-4-29

Hi Jan, thanks for the answer.

With row by row I mean that after I finish to concatenate the fourth element of array x, y and z the algorithm should go in the second row and start again with the concatenation and so on. Let me know if now is more clear.

Regarding the code that you posted I get the following error, I think is due to the semicolon instead of comma

Dimensions of arrays being concatenated are not consistent.

Jan 2022-5-2

@Fabio Taccaliti: The code I have posted does not produce this error. Then the cause of the problem must be a part of your code. If you post your code, it would be possible to fix the problem.

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