MATLAB Programming Fundamentals - MathWorks

Multilevel Indexing to Access Parts of Cells

This example shows techniques for accessing data in arrays stored within cells of cell

arrays.

Create a sample cell array.

myNum = [1, 2, 3];

myCell = {'one', 'two'};

myStruct.Field1 = ones(3);

myStruct.Field2 = 5*ones(5);

C = {myNum, 100*myNum;

myCell, myStruct}

C = 2x2 cell array

{1x3 double} {1x3 double}

{1x2 cell } {1x1 struct}

Access the complete contents of a particular cell using curly braces, {}. For example,

return a numeric vector from the cell that contains it.

C{1,2}

ans = 1×3

100 200 300

Access part of the contents of a cell by appending indices, using syntax that matches the

data type of the contents.

Enclose numeric indices in smooth parentheses. For example, C{1,1} returns the 1-by-3

numeric vector, [1 2 3]. Access the second element of that vector using smooth

parentheses.

C{1,1}(1,2)

ans = 2

Enclose cell array indices in curly braces. For example, C{2,1} returns the cell array,

{'one','two'}. Access the contents of the second cell within that cell array using curly

braces.

Multilevel Indexing to Access Parts of Cells