MATLAB Programming

Cell Arrays
Building Cell Arrays with Concatenation
There are two ways that you can construct a new cell array from existing
cell arrays:
• Concatenateentirecellarraystoindividual cells of the new array. For
example, join three cell arrays together to build a new cell array having
three elements, each containing a cell array. This method uses the curly
brace { } operator.
• Concatenate the contents of the cells into a new array. For example, join
cell arrays of size m-by-n1, m-by-n2, andm-by-n3 together to yield a new
cell array that is m-by-(n1+n2+n3) in size. This method uses the square
bracket [ ] operator.
Here is an example. First, create three 3–row cell arrays of different widths.
C1 = {'Jan' 'Feb'; '10' '17'; uint16(2004) uint16(2001)};
C2 = {'Mar' 'Apr' 'May'; '31' '2' '10'; ...
uint16(2006) uint16(2005) uint16(1994)};
C3 = {'Jun'; '23'; uint16(2002)};
This creates arrays C1, C2, andC3:
C1 C2 C3
'Jan' 'Feb' 'Mar' 'Apr' 'May' 'Jun'
'10' '17' '31' '2' '10' '23'
[2004] [2001] [2006] [2005] [1994] [2002]
Use the curly brace operator to concatenate entire cell arrays, thus building
a 1-by-3 cell array from the three initial arrays. Each cell of this new array
holds its own cell array:
C4 = {C1 C2 C3}
C4 =
{3x2 cell} {3x3 cell} {3x1 cell}
Now use the square bracket operator on the same combination of cell arrays.
This time MATLAB concatenates the contents of the cells together and
produces a 3-by-6 cell array:
C5 = [C1 C2 C3]
2-99