CODEWITHSUNDEEP
matlabmultidimensional-array
SugaKookie
SugaKookie

Reputation: 790

MATLAB Insert matrix into 3D matrix

I have a 1437X159X1251 large matrix and I want to insert a 1437x159 matrix into the middle of the larger matrix, making the large matrix 1437x159x1252 large. How would I do that? Thanks.

Upvotes: 0

Views: 721

Answers (1)

Rody Oldenhuis
Rody Oldenhuis

Reputation: 38032

For horizontal or vertial concatenation of matrices/vectors A and B, you can use 

% vertical 
[A; B]; 

% horizontal 
[A, B];  % comma is optional:
[A  B];

There is no such notation for the third dimension. You'll have to use the generalized concatenation in arbitrary dimension cat():

% Example matrices
A = rand(1437, 159, 1251);
B = rand(1437, 159); 

% Insertion point
N = 384;

% How to do it
A = cat(3, A(:,:,1:N), B, A(:,:,N+1:end));

Upvotes: 1

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