Loading Data from multiple .mat files in a folder and plotting

I need to load data from these 10 .mat files and plot fx versus Uref. Can anyone please help me with a sample code. I have tried using the for loop but it's not loading all the files.

[Rik]

If you show your code, it will be easier to suggest edits. It sounds like you are almost there already.

[Walter Roberson]

Please see http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

[Imtiaz]

Hi. Here's my code. As you can see I am only able to select one .mat file from this folder. And when I look at the workspace it also shows data only from one folder.

[Walter Roberson]

@Imtiaz

The code did not get posted?

[Rik]

Also, please do not post a picture of your code, but post the code itself.

[Stephen23]

The simple and efficient approach is to let DIR get the filenames, e.g.:

P = 'absolute/relative path to where the files are saved';
S = dir(fullfile(P,'OCTAGON*.mat'));
for k = 1:numel(S)
    F = fullfile(S(k).folder,S(k).name);
    D = load(F)
    ..
end

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

https://www.mathworks.com/help/matlab/ref/dir.html

https://www.mathworks.com/help/matlab/ref/fullfile.html

Answer 1

[Swaraj]

Hi Imtiaz,

I understand that you want to load multiple .mat file from a folder and plot the data from it and you are facing problem in loading the .mat files.

To check your issue, I created a folder with following files.

I wrote the following sample code, and I was able to load the specified three .mat file and ignoring the excel file.

currentDir = pwd;
fileList = dir(currentDir);
fileList = {fileList.name};

filteredFileList = fileList(cellfun(@(x) contains(x, 'OCTAGON') && contains(x,'.mat'), fileList));
for i=1:length(filteredFileList)
    file = load(filteredFileList{i});
    %Do your task with the file here
end

This is just the sample code. You can rewrite it as per your requirements.

Hope it helps!!