Concatenate cell data in an array

Good day,

I have got a cell which looks something like:

 c{1} = [2 3
         1 3
         9 1 
         9 8
         . .
         . .]

 c{2} = [1 2
         3 1
         . . 
         . .]

and so on.

Now I would like to vertically concatenate all data in one array.

The code I am using is:

 total = []
 for i = 1:size(c,2)
     total = [total; c{i}];
 end

This works fine, however Matlab suggests preallocation for speed. However, I don't know how to do that in this example.

Thank you in advance.

Answer 1

[Matt J]

Just do

total=vertcat(c{:})

[Pieter]

Great, thanks a lot!