Concatenating matrices in a structure with same size into a 3D array.

2023 8 21
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Hello,
I have a structure consisting of 25 matrices, all of the same sizes, 5750 x 360. I am trying to figure out how I can concatenate this array in the third dimension so that I can get an array of 5750 x 360 x 25.
x_mat.mat1=rand(100, 5);
x_mat.mat2=rand(100, 5);
x_mat.mat3=rand(100, 5);
x_mat.mat4=rand(100, 5);
structfun(@(x) cat(3, x), x_mat, UniformOutput=false)
ans = struct with fields:
mat1: [100×5 double] mat2: [100×5 double] mat3: [100×5 double] mat4: [100×5 double]
I've tried this, but it returns the same structure.
Thank you in advance. :-)

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Bruno Luong
Bruno Luong 2023-8-21
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x_mat.mat1=rand(100, 5);
x_mat.mat2=rand(100, 5);
x_mat.mat3=rand(100, 5);
x_mat.mat4=rand(100, 5);
c=struct2cell(x_mat);
A=cat(3,c{:});
size(A)
ans = 1×3
100 5 4

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