Why does Matlab not recognize fieldnames function?

Question

Volker 2024-5-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2120486-why-does-matlab-not-recognize-fieldnames-function

评论： Volker 2024-5-20

采纳的回答： Torsten

在 MATLAB Online 中打开

Hi,

Back in the past I used the 'fieldnames' function to retrieve fieldnames. But suddenly it´s not working anymore.

Strangely the function works before starting my script as console input. But as soon as I start my script, the function doesn´t get recognized anymore. It also works in other scripts. See code below.

Thank you in advance!

if length(other_data.digitalMap) == 1 || length(results.digitalMap) == 1
    fieldnames = fieldnames(results.digitalMap);
    for y =1: length(other_data.digitalMap)
        for z = 1:length(fieldnames)-1
            field_name = fieldnames{z};
            results.digitalMap(y).(field_name) = other_data.digitalMap(y).(field_name);
        end
    end
end 
%Strangely the function works before starting my script as console input:
% Create a structure with some fields
myStruct.name = 'John';
myStruct.age = 30;
myStruct.occupation = 'Engineer';
% Get the field names of the structure
fields = fieldnames(myStruct);