How to access data set from different folders?

I can easily access .dat files from the current directory by using the following codes:

%% Input data set

load ProcMacMatrix.dat   % load the file
load SuppMacMatrix.dat   % load the file
load CostMatrix.dat   % load the file
load Dataset.dat   % load the file
load ProcessingTime.dat   % load the file

My problem needs to access the similar data set, as described, from the Instance1 and Instance2. First, I want to access from the Instance1 and then Instance2. We may use for loop to access these two folders subsequently.

How can i do that?

I appreciate your help.

Answer 1

[Walter Roberson]

finfo = dir('Instance*');
finfo(~[finof.isfolder]) = [];
foldernames = {finfo.name};
ninst = length(foldernames);
instance_data(ninst) = struct();

for K = 1 : ninst
    thisfolder = foldernames{K};
    instance_data(K).ProcMacMatrix = load(fullfile(thisfolder, 'ProcMacMatrix.dat'));   % load the file
    %and similar for the other files
end

[SM]

Perfect! Thank you very much!

Answer 2

[Image Analyst]

Get a list of all files under the current folder like this:

filePattern = fullfile(pwd, '**/*.mat');
fileList = dir(filePattern);
for k = 1 : length(fileList)
	thisFullfileName = fullfile(fileList(k).folder, fileList(k).name);
	fprintf('Processing %s\n', thisFullfileName);
	s = load(thisFullfileName)
end

[SM]

Thank you!