Save output sequence of files

Question

Emmanuelle 2012-10-31

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52390-save-output-sequence-of-files

Hi! I have a question about how can I save a loop outputs. I want to write the output values of a large series of files on a separate line on text.txt. The problem is it only works with the first one, but it doesn't work with the rest. Is there something wrong?

myPath = 'C:\EX\'; 
a= dir (fullfile(myPath,'*.DIM')); 
fileNames = { a.name };
% Rename files
for k = 1:length(fileNames)
     newFileName = [fileNames{k}(1:2) fileNames{k}(4:6) '.txt']; 
     movefile([myPath fileNames{k}], [myPath newFileName]);
end
 filePattern=fullfile( myPath,'*.txt');
 txtFiles= dir(filePattern);    
   for k = 1:length(txtFiles)
    baseFileName=txtFiles(k).name;
    fullFileName= fullfile(myPath,baseFileName);
    fid=fopen(fullFileName, 'r');
    for i = 1:18
        m{i} = fgetl(fid);
    end
    result2 = m{18};
    result2b= result2([12:19]);
    fid=fopen(fullFileName, 'r');
    for i = 1:30
    m{i} = fgetl(fid);
    end
    result3 = m{30};
    result3b= result3([12:19]);
    fid=fopen(fullFileName, 'r');
    for i = 1:31
    m{i} = fgetl(fid);
    end
    result4 = m{31};
    result4b= result4([12:20]);
    fid=fopen(fullFileName, 'r');
    for i = 1:19
    m{i} = fgetl(fid);
    end
    result5 = m{19};
    result5b= result5([12:20]);
   text= {baseFileName, result2b, result3b, result4b, result5b};
    final= [Fields'; text];
       end

I've read about fprint command and I've tried but it doesn't work at all. Really thanks in advance!

EDIT:

I added a screenshoot about my variables. Is it possible because of the txtFiles is wrong?

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Answer 1

Jan 2012-11-6

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52390-save-output-sequence-of-files#answer_64469

在 MATLAB Online 中打开

 filePattern = fullfile( myPath,'*.txt');
 txtFiles = dir(filePattern);    
 output = cell(length(txtFiles), 5);
 for k = 1:length(txtFiles)
    baseFileName = txtFiles(k).name
    fullFileName = fullfile(myPath, baseFileName );
    fileData = fileread(fullFileName);
    fileCell = regexp(fileData, '\n', 'split');
    result2 = m{18};
    result2b= result2([12:19]);
    result3 = m{30};
    result3b= result3([12:19]);
    result4 = m{31};
    result4b= result4([12:20]);
    result5 = m{19};
    result5b= result5([12:20]);
    output(k, :) = {baseFileName, result2b, result3b, result4b, result5b};
  end

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Emmanuelle 2012-11-8

Thanks Jan! ;)

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Answer 2

Walter Roberson 2012-11-6

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52390-save-output-sequence-of-files#answer_64440

You are not closing the files you open.

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Jan 2012-11-6

Now after your changes we do neither know your program, nor your expectations, nor the occurring error message or whatever "doesn't work" exactly mean. How could we guess an improvement?

Emmanuelle 2012-11-8