converting 2d matrix to 3d
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Can anyone help me with making a 2D matrix into a 3D matrix?
I have a (71680 x 8) 2d matrix and I need to make a 3D matrix of dimensions (512 x 8 x 140) I need to take (512 x 8) consecutive matrices by row for 140 layers.
Can anyone help me with this? I really appreciate any help
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Accepted Answer
Titus Edelhofer
on 25 Jun 2014
HI Joe,
if I'm not mistaken, it should be
permute(reshape(X, 512, 140, 8), [1 3 2]);
Titus
3 Comments
Titus Edelhofer
on 25 Jun 2014
Hi Joe,
thanks. Could you please accept the answer then so others know it's already answered?
Titus
More Answers (1)
amit
on 3 Oct 2016
permute(reshape(X, 512, 140, 8), [1 3 2]); what is [1 3 2] stands for?
1 Comment
Walter Roberson
on 4 Oct 2016
"B = permute(A,order) rearranges the dimensions of A so that they are in the order specified by the vector order"
In your case it would rearrange reshape(X, 512, 140, 8) to be 512 x 8 x 140 by rearranging the elements. What was previously indexed at location (I,J,K) would be at location (I,K,J) in the new array.
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