select, only once, the names present in a struct

Question

Alberto Acri 2023-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/1983144-select-only-once-the-names-present-in-a-struct

编辑： Stephen23 2023-6-14

I have the following struct. Is it possible to select, only once, the names in the 'SeriesDescription' column? So I would need to create, in this case, a struct or table consisting only of: 'Scout', 'Serie', 'standard'.

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Answer 1

Stephen23 2023-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/1983144-select-only-once-the-names-present-in-a-struct#answer_1255894

编辑：Stephen23 2023-6-14

在 MATLAB Online 中打开

C = unique({S.SeriesDescription})

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/1656435-tutorial-comma-separated-lists-and-how-to-use-them

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Answer 2

Les Beckham 2023-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/1983144-select-only-once-the-names-present-in-a-struct#answer_1255884

在 MATLAB Online 中打开

S.Number = compose('%04d', 0:16)'; % create test data since you only included a picture of your data
desc = {'Scout'; 'Scout'; 'Scout'};
for i = 4:13
    desc{i} = 'Serie';
end
for i = 14:17
    desc{i} = 'standard';
end
S.SeriesDescription = desc;
% Now, extract the unique elements of SeriesDescription and create a table
T = table(unique(S.SeriesDescription), 'VariableNames',  {'SeriesDescription'})
T = 3×1 table
    SeriesDescription
    _________________

      {'Scout'   }   
      {'Serie'   }   
      {'standard'}   