MATLAB: Open folder in Matlab

open foldersselection of filesvectors

I'm trying to open folder let's call it FolderA (Here is the directory: 'C:\Users\Usersname\Desktop\FolderA')in MATLAB that constains 9 Text Documents ('.txt') of size 30000-by-10. I want to be able to choose which files I want to observe that is one Text Doument, all Text Documents or i.e. Text Douments 1, 3 and 5.

I also want to use the selected files and use i.e. vector nr. 3 and 4 in all of them.

How does one do that?

Best Answer

We have just the file for you in the File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/10867-uipickfiles-uigetfile-on-steroids, Doug Schwarz's uipickfiles:

Description

This is a GUI application that allows multiple files or directories to be selected and allows you to manage the list (remove files, reorder, etc.) before returning. It has basic filtering as well as regular expression filtering and navigation of the file system is easy. The output is configurable (cell, struct or char arrays). It is written entirely in M and so is platform independent.

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MATLAB: How to use uigetfile to get the file path

The documentation for uigetfile() is remiss in not showing any examples that use fullfile() to construct the full file name of the chosen file. Here is how you do it:

[baseName, folder] = uigetfile();
fullFileName = fullfile(folder, baseName)

MATLAB: Read files from directory, load function causing error

Rather than say everything that's wrong with that, I'll just show you how to do it correctly, and in a more robust way:

promptMessage = sprintf('Do you want to select files?');
titleBarCaption = 'Continue?';
button = questdlg(promptMessage, titleBarCaption, 'Yes', 'No, quit', 'Yes');
if strcmpi(button, 'No, quit')
  fprintf('You selected: %s\n\n GOODBYE\n',Prompt)
  return;
end
fprintf('You selected: %s \n\n',Prompt)
fprintf('Please select the files in the dialog box\n\n')
[baseFileNames, folder] = uigetfile('*.*', 'Select a file', 'MultiSelect','on');
if isequal(baseFileNames,0)
  % User clicked the No button.
  fprintf('You selected: %s\n\n GOODBYE\n',Prompt)
  return;
end
% User selected yes if they got here.
fullFileName = fullfile(folder, baseFileNames)
fprintf('You have selected:\n')
fprintf('%s\n',baseFileNames{:})
nfiles = length(baseFileNames)
for k = 1 : nfiles
  % Get this fullfile name.
  thisFileName = fullfile(folder, baseFileNames{k});
  % Load it in to a structure.
  fprintf('Loading %s\n', thisFileName);
  matrix = load(thisFileName);
  % Might need to do matrix = matrix.matrix if matrix is a structure instead of an array.
  % Now process matrix before moving on to the next file.
end

Hopefully it's self explanatory. If not, ask.

Best Answer

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MATLAB: How to use uigetfile to get the file path

MATLAB: Read files from directory, load function causing error

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