How to create a data structure

Hallo Everyone, I needed a help in creating a data structure. I am new to this platform. it would be helpful if someones guides me through giving information or an example. I have a set of data's in an excel sheet. I need to create a data structure of it. I have set of turbines(1-5) each are having its own respective towers(1-10) having some field names. If i need to add a field name in any of my tower it should update the turbine too. How can i create a data structure for it. Thank you. Its in the form of tree.

[KSSV]

Show us an example......this information is vague....

[anush]

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/matlabcentral/answers/uploaded_files/86535/turbinr.PNG>>

i tried

function [ struct_data ] = Initialize_Data_Structure( no_turbines, no_towers ) % Initialize_Data_Structure initialises the data structure and fills with dummy data

struct_data.Diagram.Frequency_Linits=[0,1]; struct_data.Diagram.Windspeed_Linits=[0,1]; struct_data.Diagram.Rotor_Speed_Linits=[0,1]; struct_data.Diagram.Gen_Speed_Linits=[0,1];

for ii=1:no_turbines struct_data.Turbine(ii,1).Name=''; struct_data.Turbine(ii,1).Gear_Ratio=0; struct_data.Turbine(ii,1).Rotor.Speed=zeros(2,1); struct_data.Turbine(ii,1).Rotor.Mode_Names=cell(2,1)'; struct_data.Turbine(ii,1).EF_Names={'EF1','EF2'}; struct_data.Turbine(ii,1).EF_Wind_Speed=zeros(2,1); struct_data.Turbine(ii,1).EF_Rotor_Speed=zeros(2,1);

    for jj=1:no_towers
        struct_data.Turbine(ii,1).Tower(jj,1).Name= num2str(jj,'Tower %d');
        struct_data.Turbine(ii,1).Tower(jj,1).EF_Data= zeros(2,2);  
          % first dimension Names, second dimension operating points (wind, speed)
    end
end

end

Each turbine has respective all towers.

Answer 1

[Karan Singh]

Hi @anush,

I'm not entirely sure I understood your question correctly, but from what I gathered, you need a data structure (DS) that contains 5 generators, each with 10 towers.

I think using a "struct" in MATLAB would be a good option for this. https://in.mathworks.com/help/matlab/ref/struct.html

turbines = struct();

% Loop through turbines (1-5) and towers (1-10)
for turbineID = 1:5
    for towerID = 1:10
        % Create a tower structure with initial fields
        turbines(turbineID).Tower(towerID) = struct( ...
            'TowerID', towerID, ...
            'PowerOutput', rand()*100, ...   % Example field
            'Status', 'Active' ...           % Example field 
        );
    end
end


disp(turbines);

  1x5 struct array with fields:

    Tower

• Now to add some new field to a specific tower

turbines(3).Tower(5).WindSpeed = 12.5; % Add 'WindSpeed' to Tower 5 of Turbine 3

• To update all towers with new field.

for t = 1:length(turbines)
    for tw = 1:length(turbines(t).Tower)
        turbines(t).Tower(tw).Temperature = 25; % Add 'Temperature' field
    end
end

• Retrive a data from a specific tower

towerData = turbines(2).Tower(7);
disp(towerData);  % Display all fields of Tower 7 in Turbine 2

        TowerID: 7
    PowerOutput: 47.5846
         Status: 'Active'
    Temperature: 25

Before you proceed, as I already mentioned, I don't know much about your specific requirements. So, I haven't considered the time complexity of each operation. These operations can likely be optimized further, but for now, I have used a brute-force approach.

Karan