.txt files?

I have 43 text files in a folder. How can I read all files in matlab?

[David Hill]

readmatrix or readtable, attach a sample of one of your files. How do you want the files stored?

[Khan Muhammad Adeel Khan]

Thanks David for the reply. Please find attached

[David Hill]

If the sizes are the same, I would you readmatrix and store them all in a matrix. Otherwise if the sizes are different, use readmatrix and store then in a cellarray.

[Khan Muhammad Adeel Khan]

Many thanks David

Answer 1

[David Hill]

theFiles = dir('*.txt');
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    A(:,k)=readmatrix(baseFileName);%for same sizes
    B{k}=readmatrix(baseFileName);%for different sizes
end

Answer 2

[Image Analyst]

We get this question several times a week, so see the FAQ for code snippets:

https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files?

% Specify the folder where the files live.
myFolder = 'C:\Users\yourUserName\Documents\My Pictures';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder);
    uiwait(warndlg(errorMessage));
    myFolder = uigetdir(); % Ask for a new one.
    if myFolder == 0
        % User clicked Cancel
        return;
    end
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.txt'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    % Now do whatever you want with this file name,
    % such as reading it in as an array with readmatrix() or importdata()
    % or whatever function you want.
    allLines = readlines(fullFileName);
end

Another way to do it is in the FAQ