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Convert N-dimensional cells of K-dimensional matrices to N*K matrices.



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Neither previous CELL2NUM or CELL2MAT can deal with cells and matrices of arbitrary dimensions. Hence my submission.

This function convert a multidimensional cell INPUT composed of multidimensional matrices to a matrix OUTPUT. The only requirement is that all the matrices have the same dimensions.

Given N = size(INPUT) and K = size(INPUT{1}) the size of OUTPUT will be [N x K].

Example 1:
N => [2 3]
K => [4 3]
OUTPUT => [2 3 4 3]

Moreover it is possible to set parameters in order to eliminate eventual singleton dimensions or convert either N or K to equivalent vectors.

Example 2:
N => [1 3]
K => [4 1 2]
OUTPUT => [3 4 2]

Example 3:
(changing parameters)
N => [2 3]
K => [4 3]
OUTPUT => [6 4 3]

Example 4:
(using parameters)
N => [2 3]
K => [4 3]
OUTPUT => [2 3 12]

Example 5:
(using parameters)
N => [2 3]
K => [4 3]
OUTPUT => [6 12]

Comments and Ratings (4)

Hi Rafik,
If I understood correctly you would like to convert a Matrix (e.g. A =[1,2;3,4]) into a vector (e.g., A = [1,2,3,4]). To do this you could simply use the command: A(:)
Is this what you asked?


Rafik (view profile)

Thanks Roberto for the codes. My problem is follow: I have a matrix data and I want to convert it to one line. Could you help with the code please.

Yes, you are correct, the examples in the description are abstract. However "Demo_cell2num" contain numerous real examples as well as many combinations of the possible parameters that you can use.
I'll try to change the description to explain it better.

Jan Simon

Jan Simon (view profile)

The examples in the description are abstract. An explicit code would be more useful than the need to guess, what "(using parameters)" is or what "OUTPUT => [2 3 12]" could mean.
Please improve these details.



Typo fixes

MATLAB Release
MATLAB 7.14 (R2012a)

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