MATLAB: How to cell array all data into a matrices

cell arrays

 A=CHM(cellfun(@(x)~isempty(x),CHM))
 A =
    [1x4 double]    [19]    [1x4 double]    [1x4 double]
 A{:}

ans =

     1     2    14    16

ans =

     6    12    15    20

ans =

     3     4     7    17

how to get it into single matrix

 B=[1,2,14,16,19,6,12,15,20,3,4,7,17] 
strider plz check

Slightly different with ‘A’ here, since it is a cell array of vectors and not a cell array of cells, so we do not need cell2mat this time:

B = horzcat(A{:})

produces:

B =
       1     2    14    16    19     6    12    15    20     3     4     7    17

Use horzcat and cell2mat:

b = cell2mat(horzcat(a{:}))

produces:

b =
       1     2     3    12    21    32    43

I didn’t initially see the transpose operator. To get it as a column vector, add the transpose:

b = cell2mat(horzcat(a{:}))'

Here is one way:

C = {[1 6 7 9],  [1 6 7 9], [1 6 7 9];
     [8], [8], [2 6 7 9]};
 [ii,jj] = find(cell2mat(cellfun(@(x) any(ismember(x,2)),C,'UniformOutput',false)))

If you have more than one cell location with a 2 in it, ii will have all the row coordinates, and jj will have all the column coordinates.

There is a lot buried in that one line of code, including some assumptions about how you want this to generalize.