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matlabmatrixvectorization
Predrag Punosevac
Predrag Punosevac

Reputation: 208

How to concatenate array of matrices?

I have an array of possibly million 3x3 matrices. What would be the fastest way to horizontally concatenate them in MATLAB without using for loop? Ideally I would like to do something simple like this

 [M(:,:,1) M(:,:,2) ... M(:,:,10000000)]

Upvotes: 1

Views: 104

Answers (1)

bla
bla

Reputation: 26069

the way the question is put is to convert a big 3-D matrix M(:,:,j) to a concatenated 2-D one. For that just use reshape, for example:

M=reshape(M,size(M,1),[]);

Upvotes: 5

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