Reference to non-existent field 'Gait_0002'.

Question

Muhammad Hadyan Utoro 2022-1-7

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624615-reference-to-non-existent-field-gait_0002

评论： Muhammad Hadyan Utoro 2022-1-8

Hello everyone,

I had a trouble sorting out data from a cell into a structure. So, I'd like to include the data from previous cell into a new structure, but this keeps popping out:

Reference to non-existent field 'Gait_0002'.

Error in ImportingData (line 21)

Data.EMG.(gait{j}) = Data.Gait{i}.(gait{j}).Analog.Data(3:12,:)';

Here are my codes:

% Defining Files
filenames = {'Bridge_2_0001';'Lunge_R_0001';'Squat_2_0001';'Lunge_L_0001'};
filestem = 'Gait_000';
gait = ["Gait_0001" "Gait_0002" "Gait_0003" "Gait_0004" "Gait_0004" "Gait_0005" "Gait_0006" "Gait_0007"];
muscles = ["RF_L", "RF_R" "ST_L" "ST_R" "GA_L" "GA_R" "TA_L" "TA_R" "VL_L" "VL_R"];
% Load Files
for i = 1:7
    for j = 1:numel(filenames)
        for m = 1:10
            Data.Gait{i} = load(strcat(filepath,filestem,num2str(i)));
            Data.(char(filenames{j})) = load(strcat(filepath,filenames{j}));
            Data.EMG.(gait{j}) = Data.Gait{i}.(gait{j}).Analog.Data(3:12,:)';
        end
    end
end

I really appreciate your help.

Thanks

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Answer 1

Cris LaPierre 2022-1-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624615-reference-to-non-existent-field-gait_0002#answer_870495

在 MATLAB Online 中打开

It would appear that Data.Gait{i} does not containt a fieldname Gait_0002.

You are using your loop counter i, so it is hard to say which file does not have this fieldname, but when you get the error, check the value of i, and then run the following to determine which file to inspect.

load(strcat(filepath,filestem,num2str(i)))