Cell arrays
Cell arrays provide a way to combine a mixed set of objects (e.g., numbers, characters, matrices, other cell arrays) under one variable name.).
Example
>> A = [ 1 2 3 ]
A =
1 2 3
>> A(4) = 4
A =
1 2 3 4
>> A(5) = 'hello' % this will produce error
??? In an assignment A(I) = B, the number of elements in B and
I must be the same.
The problem in A(5) is that A is an integer array and we are trying to insert character element in it. So this problem can be handled with cell arrays as :
Example
>> C{1} = 1 % note the {} (curly braces)
C =
[1] [2]
>> C{2} = 2
C =
[1] [2]
>> C{3} = 3
C =
[1] [2] [3]
>> C{4} = 'Hello' % string is ok now
C =
[1] [2] [3] 'Hello'
>> C{5} = {1 2; 3 4} % appending an array to C
C =
[1] [2] [3] 'Hello' {2x2 cell}
