read file containing mixed content

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b 2022-1-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624855-read-file-containing-mixed-content

评论： b 2022-1-12

采纳的回答： Image Analyst

在 MATLAB Online 中打开

Hello,

The format of an input text file is the following:

  23.08    был
  367.92    сказал 
  12567.53    когда
...

and so on.

How to read this file so that the following loop can be used:

for i=1:length(file)
    str=fileName(i,3);
    ...
end

Thanks.

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Christopher Creutzig 2022-1-11

20a may need a hint as to the file encoding you are using. readtable("a.txt","Encoding","UTF-8","NumHeaderLines",0) seems to work for me.

b 2022-1-12

Thank you. Thats exactly where the problem was.

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采纳的回答

Image Analyst 2022-1-8

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624855-read-file-containing-mixed-content#answer_870795

在 MATLAB Online 中打开

a.txt

Try this:

% Get file name
fullFileName = fullfile(pwd, 'a.txt')
if ~isfile(fullFileName)
    errorMessage = sprintf('Error: file not found:\n%s', fullFileName);
    fprintf('%s\n', errorMessage)
    uiwait(errordlg(errorMessage))
    return;
end
% Open the file for reading in text mode.
fileID = fopen(fullFileName, 'rt');
% Read the first line of the file.
textLine = fgetl(fileID);
lineCounter = 1;
while ischar(textLine)
    % Print out what line we're operating on.
    fprintf('%s\n', textLine);
    % Split into words.
    words = strsplit(textLine);
    % Assign to vectors
    col1(lineCounter) = str2double(words{1});
    col2(lineCounter) = str2double(words{2});
    col3{lineCounter} = words{3};
    % Read the next line.
    textLine = fgetl(fileID);
    lineCounter = lineCounter + 1;
end
% All done reading all lines, so close the file.
fclose(fileID);
% Transpose from row vectors into column vectors
col1 = col1'
col2 = col2'
col3 = col3'

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Image Analyst 2022-1-9

It worked for me with my copy and paste of your original post. If it's not working with your original file, please attach your data file so I can check my program with your actual data file.

b 2022-1-10