How to: Matrix question empty column

I want to make a matrix with inbetween empty columns.

so, column 1 and 2 have data, 3 is empty, 4 and 5 have data , 6 is empty.

AllData=[Data1, Data2, emptycolumn, Data3, Data4]

thank you

Answer 1

[Evgeny Pr]

This available only for cell arrays.

 [] - (Empty) Already an array

Numeric arrays can not store any other empty numeric arrays.

 a = [1 2 3 4 5]
 a(1) = [] % delete item 1

 a = [1 2 3 [] 4 5] % a = [1 2 3 4 5] (concatenation of arrays)

 c = cell(5)

 isempty(c{1})

 c(:,1) = {10}
 c(:,3) = {20}

 c = 
    [10]    []    [20]    []    []
    [10]    []    [20]    []    []
    [10]    []    [20]    []    []
    [10]    []    [20]    []    []
    [10]    []    [20]    []    []

Answer 2

[Thorsten]

Maybe you can achieve your goal by inserting columns of NaNs

X = ones(10);
X(:, [3 6]) = nan(10,2);