Can you help me with this easy loop task?

Hello i need some help with an easy task.

I have a folder called rpm_measurements and inside of it a lot of folders called rpm0x00 (for example in the code below you can see rpm0800).

What i need is a loop to make the process you see but for each folder of my rpm_measurements folder , not only for one, as it is below.

Can you help me?

workfolder='C:\Users\Jorge\Desktop\Work_Christmas\Measurements\rpm_measurements\rpm0800\';

folders=[
    {'cdaq2mod2_ai0-hw\'}
    {'cdaq2mod2_ai1-hw\'}
    ];
file_data=dir([workfolder folders{1} 'x*.dat']);
for i=1:length(file_data); 
    files(i,1)={file_data(i).name}; 
end

delimiterIn='\t';
headerlinesIn=11;

for i=1:length(files)
    for k=1:length(folders)
        filepath = [workfolder folders{k} files{i,1}];
        A=importdata(filepath,delimiterIn,headerlinesIn);
        vel(:,k,i)=A.data(:,3);
    end
end

Answer 1

[Geoff Hayes]

Peter - what are the valid values for x? For example, if x can be just 1 through 9, then you could create your workfolder variable given x as

 for x=1:9

     workfolder = sprintf(['C:\Users\Jorge\Desktop\Work_Christmas\'...
                          'Measurements\rpm_measurements\rpm0%d00\'],x);

     % do other stuff that you have shown above

 end

The "other stuff" would be the code that you have shown in your question, but you would have to modify it so that the output from each of these folders, vel, is saved to (perhaps) a cell array.

[Peter]

Thanks Geoff.

The folders go from rpm0100 to rpm1400 with steps of 100.

How could i properly size the output (vel) as a cell array?...to have the data from all the 14 folders.

Thanks

[Geoff Hayes]

Peter - rather than making vel a cell array, just create something else that will contain all the vel data that is created at each iteration. Try the following

 myData = cell(14,1);

 for x=100:100:1400

     workfolder = sprintf(['C:\Users\Jorge\Desktop\Work_Christmas\'...
                           'Measurements\rpm_measurements\rpm%04d\'],x)

     % do other stuff that creates vel

     % save vel to myData
     myData{k} = vel;

 end

Note how the sprintf determines the number of zeros that should be used to prefix the integer portion of the folder. We use %04d to indicate that there should be at most four zeros in the number.

[Peter]

Okay, thanks a lot.

Answer 2

[Image Analyst]

Attached is some code that might help. It will recurse into all subfolders and find the files. You won't have to know the folder names and hard code them in like you did.

[Peter]

Thanks, i will work on it