How can I convert cell array to an arrary matrix?

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Abdullah Türk
Abdullah Türk 2024-1-7
编辑： Stephen23 2024-1-9
Hi,
I have a cell array and I want to ceovert it to an array matrix.
Can I convert this cell array as follows:
array_matrix = [6 11 20 12 15 19 12 4 18 16 3 13 1 14 7 8 5 10 9 17]
Is there a way to do this?
My cell matrix is attached.

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采纳的回答

Dyuman Joshi
Dyuman Joshi 2024-1-7
移动：Dyuman Joshi 2024-1-7
Ran in:
in = load('cell_array.mat')
in = struct with fields:
ans: {[4×1 double] [15] [2×1 double] [4] [18] [16] [3] [2×1 double] [14] [2×1 double] [3×1 double] [17]}
x = in.ans;
out = vertcat(x{:}).'
out = 1×20
6 11 20 2 15 19 12 4 18 16 3 13 1 14 7 8 5 10 9 17

更多回答（2 个）

Sulaymon Eshkabilov
Ran in:
This is how it can be attained:
A = load('cell_array.mat').ans;
for ii = 1:numel(A)
H = A{ii};
K{ii} = cat(1, H(:)');
end
array_matrix = (horzcat(K{:}))
array_matrix = 1×20
6 11 20 2 15 19 12 4 18 16 3 13 1 14 7 8 5 10 9 17
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Voss
Voss 2024-1-7
编辑：Voss 2024-1-7
Ran in:
@Abdullah Türk: If you know that all the cells of your cell array contain column vectors of the same class (as is the case in the variable ans in the posted mat file), then @Dyuman Joshi's approach will work:
x = load('cell_array.mat').ans;
out = vertcat(x{:}).'
out = 1×20
6 11 20 2 15 19 12 4 18 16 3 13 1 14 7 8 5 10 9 17
Alternatively, if the cells can contain arrays of any shape and dimensionality (still of the same class), then you'll need to reshape them before doing the vertical concatenation (vertcat). For example:
x = load('cell_array.mat').ans;
x_col = cellfun(@(m)reshape(m,[],1),x,'UniformOutput',false);
out = vertcat(x_col{:}).'
out = 1×20
6 11 20 2 15 19 12 4 18 16 3 13 1 14 7 8 5 10 9 17
  1 个评论
Abdullah Türk
Abdullah Türk 2024-1-8
Voss, thank you very much for your detailed information.
The following code is not work. I think this has something to do with the MATLAB version I use. I'm sure the code you wrote works, but I think it didn't work in my version.
x = load('cell_array.mat').ans;
Thanks a lot again.

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