How to convert 3D matrix to 2D with a specific format

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RH 2014-3-4

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关闭： MATLAB Answer Bot 2021-8-20

Hello all :)

I have a [1000,64,10] matrix and want to change it to a [10000,64] in a way that the first 1000 rows in 2D matrix belong to [:,:,1] in 3D matrix and the 2nd 1000 rows to [:,:,2] and so on, in other words I want the element (1001,1) in the new matrix corresponds to (1,1,2) in the old one and (2001,1) corresponds to (1,1,3) and so on.

Is there any function applying this rule?

Thanks :)

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回答（2 个）

Azzi Abdelmalek 2014-3-4

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在 MATLAB Online 中打开

A=rand(1000,64,10);
B=permute(A,[ 2 1 3]);
out=B(:,:)'

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Azzi Abdelmalek 2014-3-5

RH, I posted a short example, I think my code is doing what you asked. If not, please, post the expected result from my short example

RH 2014-3-5

Dear Azzi

It does exactly what I was looking for... Thanks again! :)

Chears

Andrei Bobrov 2014-3-5

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编辑：Andrei Bobrov 2014-3-5

在 MATLAB Online 中打开

A = randi(100,3,4,4);
a1 = num2cell(A,[1 2]);
out = cat(1,a1{:});

out = reshape(permute(A,[1 3 2]),[],size(A,2));

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RH 2014-3-5

Dear Andrei

Thanks for the help, I'm going to check it too, it's always handy to know different solutions. :)

Cheers

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