MATLAB: Accessing cell arrays within a cell array and merging them together end to end or in the same column/row

Question

I have a cell array with 9 cells. Within those cells I have matrices with 7001 x 1 data points. I am trying to merge all the matrices (7001×1 double) so that all them from all the cells are in in one cell row or column, either is fine.

So there are 9 cells within the cell, with a total of 346 matrices divided in these 9 cells. I want all these matrices in a cell array all merged into one column or row.

I attached an exampledata column array. Please let me know if this is not clear.

Answer 1

Because the cell arrays in each cell are all row vectors they can only be concatenated horizontally, thus:

[exampledata{:}]  %or horzcat(exampledata{:})