MATLAB - re-arrange matrix by vertically concatenating submatrices
matlab, matrix
Solution
Consider the following:
A = rand(3,6);
blkSz = 2;
C = mat2cell(A, size(A,1), blkSz*ones(1,size(A,2)/blkSz));
C = cat(1,C{:})
This assumes that `size(A,2)` is evenly divisible by `blkSz`
Problem
I am having trouble with the following task: Suppose a 3x6 matrix: A = ``` 0.2787 0.2948 0.4635 0.8388 0.0627 0.0435 0.6917 0.1185 0.3660 0.1867 0.2383 0.7577 0.6179 0.7425 0.0448 0.4009 0.9377 0.4821 ``` What I would like to do is to divide the matrix into blocks, like this: A = ``` 0.2787 0.2948 | 0.4635 0.8388 | 0.0627 0.0435 0.6917 0.1185 | 0.3660 0.1867 | 0.2383 0.7577 0.6179 0.7425 | 0.0448 0.4009 | 0.9377 0.4821 ``` and vertically concatenate these blocks to get the final result: ``` 0.2787 0.2948 0.6917 0.1185 0.6179 0.7425 0.4635 0.8388 0.3660 0.1867 0.0448 0.4009 0.0627 0.0435 0.2383 0.7577 0.9377 0.4821 ``` I think if I can get help with this, then I can perhaps do it for arbitrary matrices A. I can solve the above problem using for-loops, but I am looking for a vectorised solution. Thanks in advance! N.