Sorting array with missing numbers

Hello,

I have a cell array that goes like this:

A= [ 1
2
3
7
8
10
14
15]

I want to insert empty data or null data where there are no numbers, like this

A=[1
2
3
_
_
_
7
8
_
10
_
_
_
14
15]

How can I do this?

Thank you!

Answer 1

[Star Strider]

The accumarray function can do this

A= {1
2
3
7
8
10
14
15};

ix = cumsum(diff([0 [A{:}]]));
Afill = accumarray(ix', [A{:}], [], @(x){x})

Afill = 

      [ 1]
      [ 2]
      [ 3]
      []
      []
      []
      [ 7]
      [ 8]
      []
      [10]
      []
      []
      []
      [14]
      [15]

[Andrei Bobrov]

accumarray([A{:}]',[A{:}]',[],@(x){x})

[Star Strider]

Thank you, Andrei!

Answer 2

[per isakson]

Is this what you are looking for?

A = [1;2;3;7;8;10;14;15];
B = nan( A(end), 1 );
B(A) = A;

>> B'
ans =
     1     2     3   NaN   NaN   NaN     7     8   NaN    10   NaN   NaN   NaN    14    15
>>