Loop for increment number in file name

Question

Francis Trombini 2022-11-12

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1849438-loop-for-increment-number-in-file-name

评论： Voss 2022-11-15

采纳的回答： Image Analyst

在 MATLAB Online 中打开

I need to save 10 files "AccelGyro_Gait" with the suffix from 01 to 10, i.e., AccelGyro_Gait_01, AccelGyro_Gait_02...

This is my starting code. But I'm not able to finish it efficiently. Only the last trial

for i = 1:10
    run rawP5reader; % Load files
    gyro = (ans(2).data); 
    accel = (ans(1).data(1:length(gyro),:));
    timeStamps = (ans(2).timestamps);
    zerosMat = zeros(length(timeStamps),7);
    zerosMat(:,1) = (timeStamps);
    zerosMat(:,2:4) = accel;
    zerosMat(:,5:7) = gyro;
    AccelGyro_Gait = zerosMat;
    % .... Save the file name by adding numbers at the end.
end

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Answer 1

Image Analyst 2022-11-12

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https://ww2.mathworks.cn/matlabcentral/answers/1849438-loop-for-increment-number-in-file-name#answer_1098063

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Try this:

outputFolder = pwd; % Or 'C:\whatever'
for i = 1:10
    run rawP5reader; % Load files
    gyro = (ans(2).data); 
    accel = (ans(1).data(1:length(gyro),:));
    timeStamps = (ans(2).timestamps);
    zerosMat = zeros(length(timeStamps),7);
    zerosMat(:,1) = (timeStamps);
    zerosMat(:,2:4) = accel;
    zerosMat(:,5:7) = gyro;
    AccelGyro_Gait = zerosMat;
    % Save the file name by adding numbers at the end.
    baseFileName = sprintf('AccelGyro_Gait_%2.2d.mat', i);
    fullFileName = fullfile(outputFolder, baseFileName);
    fprintf('Saving "%s".\n', fullFileName);
    save(fullFileName, 'AccelGyro_Gait');
end

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Francis Trombini 2022-11-13

Thanks for your detailed answer, Image Analyst. It helped me a lot.

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Answer 2

Voss 2022-11-12

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1849438-loop-for-increment-number-in-file-name#answer_1098058

在 MATLAB Online 中打开

Here's one way to generate those file names:

for i = 1:10
    current_file_name = sprintf('AccelGyro_Gait_%02d',i)
    % then do something with current_file_name, 
    % e.g., use it as the file to save something to
end
current_file_name = 'AccelGyro_Gait_01'
current_file_name = 'AccelGyro_Gait_02'
current_file_name = 'AccelGyro_Gait_03'
current_file_name = 'AccelGyro_Gait_04'
current_file_name = 'AccelGyro_Gait_05'
current_file_name = 'AccelGyro_Gait_06'
current_file_name = 'AccelGyro_Gait_07'
current_file_name = 'AccelGyro_Gait_08'
current_file_name = 'AccelGyro_Gait_09'
current_file_name = 'AccelGyro_Gait_10'