CODEWITHSUNDEEP
arraysmatlabmatrix
Mrmr
Mrmr

Reputation: 19

copy in a row manner in Matlab or reshaping dimension

I have a matrix of 5 x 2611 + 1 dangling and I want to get from the same matrix 96x136 matrix what I was thinking is to copy each row until it completes the 136 and so on. However, I don't know where to begin with or which function is the best to do the trick. for example:

 [2 3 5 6 7;
 8 9.555 10.888 20.888 3.5;
 .........................;
  ......................   5]

so the matrix looks like 5*2611 + 1 I know that mat would not accept it in one row and one column because the above dimension is 2611*5 at the end I have one last element

change it in a row manner to be 2 3 5 6 7 8 9.555 10.888 20.888 3.5 ........ 5 until the end of 136 column and start a new row with the same order.

Upvotes: 0

Views: 406

Answers (2)

High Performance Mark
High Performance Mark

Reputation: 78314

If you have a matrix of 5*2611 elements you can:

  1. reshape it into a vector with one row, eg vec1 = reshape(mat1',1,5*2611)
  2. tack on the extra value, eg vec1 = [vec1 dangler]
  3. reshape into a matrix again mat2 = reshape(vec1,96,136)

and, if I got the transpose right, you have the matrix you're looking for. If I didn't get the transpose right @Shai will come along and correct me.

Upvotes: 2

Shai
Shai

Reputation: 114816

You need to use transpose and reshape:

A = [ 2 3 5 6 7 8;...
      9 10 11 12 13];
B = reshape( A.', [3 4] ).';

B will be of size [4 3] with elements ordered according to row stacking of A.

Upvotes: 2

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