Using vertcat to convert cellarray consisting of mutiple columns into an array of multiple columns

I have the following cellarray

C = cell(3)

C = 3×3 cell array
    {0×0 double}    {0×0 double}    {0×0 double}
    {0×0 double}    {0×0 double}    {0×0 double}
    {0×0 double}    {0×0 double}    {0×0 double}

I want to vertically contactenate all columns and obtain an array. If my cell array just has one column I use

data_array = vertcat(C{:})

But I am not sure how to do it for multiple columns. Thank you for all the help!

[Walter Roberson]

If the entries in the cells are scalars, then cell2mat()

[Shreshtha Chaturvedi]

I just did that, thank you!

Answer 1

[Shreshtha Chaturvedi]

As @Walter Roberson commented, cell2mat(C) solved my purpose.

Answer 2

[Sulaymon Eshkabilov]

Here is how it can be attained:

C1 = {randi(3, 3)};
C2 = {ones(3)};
C3 = {zeros(3)};

C4 = {randi(3, 3)};
C5 = {ones(3)};
C6 = {zeros(3)};

C7 = {randi(3, 3)};
C8 = {ones(3)};
C9 = {zeros(3)};
C = {C1, C2, C3; C4, C5, C6; C7, C8, C9};
CC = cell2mat(vertcat(C{:}))

CC = 27×3

1 2 3 2 3 2 2 2 1 2 2 3 3 1 1 2 1 1 1 3 3 1 1 2 3 3 1 1 1 1