Convert .lvm automatically in .txt

Question

Antonia Schelte 2016-6-21

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https://ww2.mathworks.cn/matlabcentral/answers/291153-convert-lvm-automatically-in-txt

移动：Voss 2024-2-27

Hi. How can I automatically convert in a loop 25 files like A_12.lvm, A_13.lvm, etc. until A_36.lvm with *.lvm extention into *.txt extention ?

Many thanks for help.

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Lina 2024-2-27

移动：Voss 2024-2-27

How to read lvm or any type of files with different names in loop like ECG1,ECG2,ECG3..... in the same mfile automatic

Voss 2024-2-27

移动：Voss 2024-2-27

https://www.mathworks.com/matlabcentral/answers/57446-faq-how-can-i-process-a-sequence-of-files

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Answer 1

NE 2016-7-23

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https://ww2.mathworks.cn/matlabcentral/answers/291153-convert-lvm-automatically-in-txt#answer_229570

编辑：NE 2021-8-24

在 MATLAB Online 中打开

Hi,

Is there some .lvm files you don't want to convert ? And by convert do you mean only changing the extension ?

If yes here is something you can try (it convert all the .lvm files that begin with "A_" in a designated folder):

% Ask the user for the folder containing the LVM files
LVM_files_path = uigetdir(cd,'Select the FOLDER of the LVM files to rename');
% Or put the path directly in Matlab (you will need to uncomment the line)
%LVM_files_path = '.....';
% Get all LVM files in the selected folder
LVM_files = dir(fullfile(LVM_files_path,'*.lvm'));
% Loop on all the files
cpt_files_renamed = 0; % init
for id = 1:length(LVM_files)
    % Get only the file name
    [~,name,~]= fileparts(LVM_files(id).name);
    if strcmp(name(1:2),'A_') % Check if the name of the file begins w/ "A_"
        num = str2double(name(3:end));
        if ~isnan(num)
            % rename (the only solution is to use "movefile")
            movefile(LVM_files(id).name, [name '.txt']);
            cpt_files_renamed = cpt_files_renamed + 1;
        end
    end
end
% display a message to say that the files have been renamed
msgbox([num2str(cpt_files_renamed) ' files renamed'],'Success');

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Answer 2

Walter Roberson 2021-8-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/291153-convert-lvm-automatically-in-txt#answer_773254

在 MATLAB Online 中打开

Using https://www.mathworks.com/matlabcentral/fileexchange/19913-lvm-file-import

for K = 1 : 36
   basename = sprintf('A_%d', K);
   filename = [basename '.lvm'];
   outfile = [basename '.mat'];
   clear data
   data.(basename) = lvm_import(filename, 1);
   save(outfile, '-struct', 'data');
end

This code saves the data in a .mat file named the same thing as the input file (without the extension), as a variable with the same name as the input file (without an extension.)