How to save each time step of for loop with a different .txt name

Hi,

I have a lerge number of .dat files and I have to modify some cells that respect certains conditions. For this reason I have builded a for loop and it works great, but I want to save each output of the loop (the .dat file modified named now "data") as .txt file whit the original name. I try whit many function but until now I haven't found a solution.

Here is the code that I developped.

clear

% this part gives you the txt file name list in your folder

dirName ='O:\rete_idro_pluvio\Digitalizzazione\Limnimetri\work\Aggiornamento indici-Matlab\20210806_TIC_BED'; % folder path

files = dir( fullfile(dirName,'*.dat') ); % list of all *.dat files

files = {files.name}'; % file names

%% for loop

for i = 1:numel(files) % for loop for each file

% readtable

data = readtable(files{i});

[r c]= size (data);

for y= 1:r

%for x = files(1,1): files(130,1)

if data{y,3}==330

data{y,3}=500;

writetable(data,sprintf('%files.txt',i));

end

end

end

Thanks!!!

Answer 1

[Geoff Hayes]

@Flavio Croce - if you just want to change the extension, then you could do something like

[~,name,~] = fileparts(files{i});
writetable(data,[name '.txt']);

where we use fileparts to get the name of the file (ingoring path and extension) and then just append the txt extension to it.

[Flavio Croce]

Thank you, it works perfectly!