dynamic structures in matlab

In MATLAB, you can create and manipulate dynamic structures using the built-in function struct(). A dynamic structure is a structure that is created without the necessity of predefining the fields. You can add fields and their values to the structure dynamically during runtime.

Here is an example that shows how to create a dynamic structure and add fields to it:

main.m
% create an empty structure
myStruct = struct();

% add fields and their values
myStruct.field1 = 'value1';
myStruct.field2 = 2;
myStruct.field3 = [1 2 3];
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You can also create a dynamic structure with fields and their corresponding values using the following syntax:

main.m
myStruct = struct('field1', 'value1', 'field2', 2, 'field3', [1 2 3]);
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To access the values stored in the dynamic structure, use the dot notation:

main.m
disp(myStruct.field1); % outputs 'value1'
disp(myStruct.field2); % outputs 2
disp(myStruct.field3); % outputs [1 2 3]
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You can also loop through the fields of a dynamic structure using the fieldnames function:

main.m
fields = fieldnames(myStruct);
for i = 1:length(fields)
    disp(myStruct.(fields{i}));
end
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