Using cell array to create 3D sparse matrix.

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Collet Bastien
Collet Bastien 2012-10-2
Hello, I would like to create a 3d-sparse matrix. Ofc, I know that matlab's toolbox doesn't have it so far.
Here is my code :
C=zeros(m^nun,m,nu);
I would like to use a cell array filled with 2d sparse matrix. Something like :
A = zeros(m^nun, 1);
B = cell(size(A));
SP = sparse(m, nu);
for j=1:m^nun
B{j} = SP;
end
Is it the right way to do it ?
Furthemore, can I use my matrix B in the same way as my matrix C ? For example, here is my code (and it works) :
C(1:x,A,1)=N;
But is it going to work with my matrix B as well ? (by doing : B(1:x,A,1)=N;)
Thank you, and sorry for the long post.

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回答（1 个）

Matt J
Matt J 2012-10-2
编辑：Matt J 2012-10-2
Consider using this FEX contribution instead
http://www.mathworks.com/matlabcentral/fileexchange/29832-n-dimensional-sparse-arrays
It will let you do many/most things that you can do with 3D full arrays.
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Collet Bastien
Collet Bastien 2012-10-10
编辑：Collet Bastien 2012-10-10
Ok,I'm looking for a new matlab version, I'm also going to send you the variables too.
Matt J
Matt J 2012-10-10
I received your file, but
PV(:,:,1)=AAA;
works fine for me. I'm betting that upgrading will fix it.

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