How can I store the compressed file into a different folder with the same structure as the original?

How can I compress each file and store it into a new folder with the same structure as the orginal?

If any error occurs during compression, I'm using 'try catch' to skip the file and write the error to temp.Compression_Error

The code I am using is below:

root = 'C:\users\19108\Documents'
dirlist = dir(fullfile(root, '**\*.*'));
filelist = dir(~[dirlist.isdir]);

names = {filelist.names};
folder = {filelist.folder};
Filepath = strcat(folder,"\",names)';

numfiles = length(Filepath);
temp = table;
temp.Filepath = Filepath
temp.Compressoin_Error = cell(numfiles,1)
mkdir C:\users\19108\Documents newfolder
for i = 1:numfiles
   
   try
    compressed = gzip(Filepath{i}, 'C:\users\19108\Documents\newfolder');
   catch matlabError
       temp.Compression_Error{i} = {matlabError};     
   end    
end

Answer 1

[Image Analyst]

See the FAQ:

https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files?

If you still can't figure out how to adapt the FAQ code, then write back, but it should be pretty straightforward.

[Rookie Programmer]

From reading the FAQ, it seems I am approching it correct.

Once the file is compressed, how can I then write the compressed file to the new folder keeping the same structure as the orginal?

After processing the line below:

compressed = gzip(Filepath{i})

Id like to then save each compressed file in the newfolder keeping the same structure.

mkdir C:\users\19108\Documents newfolder

[Image Analyst]

Only create the new folder if it does not exist yet

outputFolder = 'C:\users\19108\Documents\Output Zip Files';
if ~isfolder(outputFolder)
    mkdir(outputFolder))
end

Then, in the loop over input filenames, create the output file with sprintf() from your input file name

[inputFolder, baseFileNameNoExt, ext] = fileparts(inputFileName);
outputFileName = fullfile(outputFolder, [baseFileNameNoExt, '.zip']);
fprintf('Compressing "%s"\n', outputFileName)
compressed = gzip(outputFileName)

Disclaimer - I don't know what gzip does but if you still need help with input and output filenames, write back.

[Rookie Programmer]

gzip is a compression method. For each file in root, it will be compressed using gzip (Compress files into GNU zip files).

[Image Analyst]

So is it working now?

If this Answer solves your original question, then could you please click the "Accept this answer" link to award the answerer with "reputation points" for their efforts in helping you? They'd appreciate it. Thanks in advance. 🙂 Note: you can only accept one answer (so pick the best one) but you can click the "Vote" icon for as many Answers as you want. Voting for an answer will also award reputation points.

[Rookie Programmer]

After compressing the files, I'm not getting the expected structure of the output.

[Image Analyst]

OK, I read your reply. Good luck with it.