MATLAB Programming Fundamentals - MathWorks

Structures “Create Structure Array” on page 11-2 “Access Data in a Structure Array” on page 11-7 “Concatenate Structures” on pa ...

Create Structure Array This example shows how to create a structure array. A structure is a data type that groups related data u ...

patient(2).name = 'Ann Lane'; patient(2).billing = 28.50; patient(2).test = [68, 70, 68; 118, 118, 119; 172, 170, 169]; patient ...

Any unspecified fields for new structs in the array contain empty arrays. patient(3).name = 'New Name'; patient(3) ans = struct ...

See Also Related Examples “Access Data in a Structure Array” on page 11-7 “Create Cell Array” on page 12-3 “Create and Work wit ...

More About “Cell vs. Structure Arrays” on page 12-19 “Advantages of Using Tables” on page 9-66 11 Structures ...

Access Data in a Structure Array This example shows how to access the contents of a structure array. To run the code in this exa ...

To access part of a field, add indices as appropriate for the size and type of data in the field. For example, pass the upper le ...

If a particular field contains a cell array, use curly braces to access the data, such as S.cellField{1:50,1:80}. Data in Nonsca ...

S = 1×2 struct array with fields: X map caption For nonscalar structures, the syntax for accessing a particular field is structN ...

Concatenate Structures This example shows how to concatenate structure arrays using the [] operator. To concatenate structures, ...

structure new both have two columns, you can concatenate them vertically with a semicolon separator. new(1,1).a = 1; new(1,1).b ...

Generate Field Names from Variables This example shows how to derive a structure field name at run time from a variable or expre ...

Access Data in Nested Structures This example shows how to index into a structure that is nested within another structure. The g ...

s(1) .n(1) .a 1 1 1 1 1 1 1 1 1 .b 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 .c 17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 10 12 19 21 3 11 18 ...

Access Elements of a Nonscalar Struct Array This example shows how to access and process data from multiple elements of a nonsca ...

If all of the fields contain the same type of data and can form a hyperrectangle, you can concatenate the list items. For exampl ...

Ways to Organize Data in Structure Arrays There are at least two ways you can organize data in a structure array: plane organiza ...

If you have arrays RED, GREEN, and BLUE in your workspace, then these commands create a scalar structure named img that uses pla ...

Element-by-Element Organization Consider a database with patient information. Each record contains data for the patient’s name, ...