Combine reading .txt

I have a coding like this:

% Specify the folder where the files live.
myFolder = 'D:\Home\MultiLinierRegression\OutputCalc';
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isdir(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s', myFolder);
    uiwait(warndlg(errorMessage));
    return;
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(myFolder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    % Now do whatever you want with this file name,
    % such as reading it in as an image array with imread()
    
    temp = importdata(fullFileName);
    %imshow(imageArray);  % Display image.
    %   drawnow; % Force display to update immediately.
    Y=temp(:,1); X=temp(:,2:end);
    X=[X temp(:,2:end)];
end

But I don't why my coding only read two files. Actually in my folder I have 18 files.

Thanks

[Walter Roberson]

Are you getting any error message?

I wonder if the importdata() is failing, or if the importdata() is returning something non-numeric. importdata() has a habit of changing the datatype returned depending on the content of the file, which is why I do not use it: if I know the expected format of the file then I use an appropriate routine for that kind of file.

[Skydriver]

No thw coding is working, but only read 2 files

[Walter Roberson]

What shows up for

length(theFiles)
{theFiles.name}

[Skydriver]

My format data is .txt

[Walter Roberson]

.txt is a file extension, not a format. format is the details of how the information is laid out.

[per isakson]

Add the line

reshape( {theFiles.name}, [],1 )

before the for-loop. What does it print to Command Window?

[Skydriver]

Finaly I can use my coding by adding [] before looping. It works for me to call several .txt files.