Make histogram from multiple cells.

Hello,

I have a 1x30 cell array with all cells being Mx24 (M differ).

The cells look like the one above but with different amount of rows.

Now to my question, is there an efficient way to make one histogram of all of the values in all of the cells and not just a histogram for each cell?. I know that I can use cat to combine the cells and then make a histogram of the combined array, but I was wondering if there is a more efficient of doing it.

[Stephen23]

CAT or VERTCAT

Answer 1

[Bruno Luong]

% Generate dummy test data
C=arrayfun(@(varargin)randn(5+randi(20),24), 1:30, 'unif', 0);

A=cell2mat(C(:)); % m x 24, like cat(1,C{:})
histogram(A(:))