Reading many csv files and Plot

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Hormesis 2017-9-21

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https://ww2.mathworks.cn/matlabcentral/answers/357788-reading-many-csv-files-and-plot

评论： Walter Roberson 2017-9-21

Hey, I think my question is classic but i am beginner and i cant get it until now. I want to read many csv files where each one contains two columns and a header ( the header ist not important) . Later i want to plot it and analyse it. hier is my code but i get this error message: 'Reference to non-existent field 'names'.' hier is my code:

path = 'myPath'; 
liste = dir(path); 
files = {liste.names}; 
for k=1:numel(files) 
      fileID = fopen(fullfile(path,files{k}),'r'); 
      daten{k} = textscan(fid,'%s'); 
      fclose(fileID); 
  end

can someone help me?

Thank you

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Answer 1

Walter Roberson 2017-9-21

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在 MATLAB Online 中打开

You had a minor typing mistake.

I also changed the name of the variable path as that is an important MATLAB internal variable.

projectdir = 'myPath'; 
liste = dir( fullfile(projectdir, '*.csv') ); 
files = {liste.name}; 
for k=1:numel(files) 
      fileID = fopen( fullfile(projectdir, files{k}),'r'); 
      daten{k} = textscan(fid,'%s'); 
      fclose(fileID); 
end

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Hormesis 2017-9-21

在 MATLAB Online 中打开

thank you Walter but i get the same Problem for this adjusted code:

projectdir= 'D:\myValues'; 
liste = dir( fullfile(projectdir, '*.csv') );
files = {liste.names}; 
for k=1:numel(files) 
    % einlesen der Dateien 
    fileID = fopen( fullfile(projectdir, files{k}),'r');  
    daten{k} = textscan(fid,'%s'); 
    fclose(fileID); 
end