i had a cell array C of dimension 64x8 in which each row is comprised of the following dimension,
Say,
10x26 double 10x26 double 10x26 double 10x26 double 10x26 double 10x26 double 10x26 double 10x26 double
i used the following command to convert each element of the cell array to a matrix,
D = cellfun(@(x) {x(:)}, C);
which gave me the following output,
260x1 double 260x1 double 260x1 double 260x1 double 260x1 double 260x1 double 260x1 double 260x1 double
Now, i need to horizontally concatenate each 260x1 element across the 8 rows of the cell array, so i would get a
2080x1 dimension-ed value in a single cell
where 2080 is the product of 260x8 (along 8 rows). and this should transform the 64x8 Cell array to 64x1 array.
So i must get the output like the below,
2080x1
2080x1
......
......
......
2080x1
I hope cellfun
cannot be used since it applies the functions to each element of the cell array. but i need to concatenate the elements of cell array itself, also let me know if there is a way to do it without loops.
The trick here is to use vertcat
:
array = vertcat(cellArray{:});
The {:}
part returns the contents of all cells as a list of outputs, and vertcat
takes these as inputs and concatenates them along the first dimension. If you wanted to concatenate along the second dimension you can use horzcat
, and if you wanted to concatenate along some other dimension you can use the general cat
.
horzcat(A, B, ...)
and vertcat(A, B, ...)
are the functional forms of the syntax [A, B, ...]
and [A; B; ...]
, respectively.
Note you could also have used these functions on your original C
without using cellfun
as you did. Experiment with these methods to better understand their functionality.