How to extract one data from various mat files to one txt file
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My code generates various mat files. I know how to extract one specific data from mat to txt :
Data = load('data001.mat','Vol');
DataField = fieldnames(Data);
dlmwrite('data.txt', Data.(DataField{1}));
But I do not know how to extract the same 'Vol' data of different data00x.mat to the same data.txt.
Thank you for your help.
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Karim
2022년 6월 28일
편집: Karim
2022년 6월 28일
assuming you want to append the data to the same text file, you can generate the name of the file in a loop:
numFiles = 10;
for i = 1:numFiles
currFile = sprintf( 'data%03d.mat', i)
end
so the full routine would be something like (note that it won't work here since the data files are not attached)
numFiles = 10;
for i = 1:numFiles
currFile = sprintf( 'data%03d.mat', i);
Data = load(currFile,'Vol');
DataField = fieldnames(Data);
dlmwrite('data.txt', Data.(DataField{1}), '-append');
end
추가 답변 (1개)
Nitanshu
2022년 6월 28일
Hi Anthony
Probably you could take a reference from below code.
% where directory name is the name of directory where all your mat files
% are present.
directory_instance = dir('directory_name');
file_names = {directory_instance.name};
[row_size, col_size] = size(file_names);
for i = 1: col_size
file_name = string(file_names(1, i))
Data = load(file_name,'Vol');
DataField = fieldnames(Data);
dlmwrite('data.txt', Data.(DataField{1}));
end
Hope it helps!
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