I understand that you are trying to import all `.mat` files from a directory and concatenate their columns vertically, you can use MATLAB's `dir` function to list all the files, and then loop through each file to load and concatenate the data.
Here's a step-by-step guide with example code:
% Specify the directory containing the .mat files
directory = 'your_directory_path';
% Get a list of all .mat files in the directory
fileList = dir(fullfile(directory, '*.mat'));
% Initialize cell arrays to store concatenated columns
column1 = [];
column2 = [];
column3 = [];
column4 = [];
% Loop through each file
for i = 1:length(fileList)
% Construct the full file path
filePath = fullfile(directory, fileList(i).name);
data = load(filePath);
% Assuming the data is stored in a variable named 'dataMatrix'
dataMatrix = data.dataMatrix;
% Concatenate each column vertically
column1 = [column1; dataMatrix(:, 1)];
column2 = [column2; dataMatrix(:, 2)];
column3 = [column3; dataMatrix(:, 3)];
column4 = [column4; dataMatrix(:, 4)];
end
%Display the concatenated columns (optional)
disp('Concatenated Column 1:');
disp(column1);
disp('Concatenated Column 2:');
disp(column2);
disp('Concatenated Column 3:');
disp(column3);
disp('Concatenated Column 4:');
disp(column4);
- Set the `directory` variable to the path where your `.mat` files are located.
- Use `dir` to get a list of all files with a `.mat` extension in the specified directory.
- Initialize empty arrays (`column1`, `column2`, `column3`, `column4`) to store the concatenated data from each column.
- Construct the full path for each file using `fullfile`. Load each file using the `load` function.
- Extract the matrix (assumed to be named `dataMatrix` here) and concatenate each column vertically using the `;` operator.
I hope this helps!
