Filter löschen
Filter löschen

Merging Multiple text files

69 Ansichten (letzte 30 Tage)
Robert
Robert am 27 Mai 2015
Bearbeitet: Stephen23 am 18 Apr. 2021
I have 1505 text files, each 96x6. I want to be able to merge them such that file 2 is below file 1, file 3 is below file 2 etc all in the same text file.
I was previously given this code
files=dir('*.txt');
fileout='merged.txt';
fout=fopen(fileout,'w');
for cntfiles=1:length(files)
fin=fopen(files(cntfiles).name);
while ~feof(fin)
fprintf(fout,'%s %d\n',fgetl(fin),cntfiles);
end
fclose(fin);
end
fclose(fout);
At first it seemed to work but I found it jumbles the data a bit and I cannot use it.
Are there any alternatives?

Akzeptierte Antwort

Stephen23
Stephen23 am 27 Mai 2015
Bearbeitet: Stephen23 am 18 Apr. 2021
I had exactly the same issue, and solved it by writing a function called natsortfiles to sort file-names into order based on their number values (not just ASCII order). You can get it here:
S = natsortfiles(dir(..));
You can use it with your code by doing something like this (outline only):
S = dir('*.txt');
S = natsortfiles(S); % alphanumeric sort by filename
for k = 1:numel(S)
fid = fopen(S(k).name,'rt');
... code here
fclose(fid);
end

Weitere Antworten (2)

Joseph Cheng
Joseph Cheng am 27 Mai 2015
Since you're just doing a complete copy and paste of the text files just read it in as binary and write it all. I had to put a \n after writing all the data for each file as i didn't have one at the last line of my file. Such that it would merge the last line of previous file with the first line of the current file.
files=dir('txt*.txt'); %additional filter so i didn't read in my merged file
fileout='merged.txt';
fout=fopen(fileout,'w');
for cntfiles=1:length(files)
fin=fopen(files(cntfiles).name);
temp = fread(fin,'uint8');
fwrite(fout,temp,'uint8');
fprintf(fout,'\n');
fclose(fin);
end
fclose(fout);
  4 Kommentare
Joseph Cheng
Joseph Cheng am 27 Mai 2015
Ahh i misunderstood what you were saying about jumbling of data.
Astik Sachan
Astik Sachan am 8 Aug. 2019
Follow below answer for the sorting of the files based on Name or Time or any other File Information

Melden Sie sich an, um zu kommentieren.


Shreenath Krishnamurthy
Shreenath Krishnamurthy am 5 Aug. 2019
I have a follow up question on this thread. I am using the code given above by Robert to merge multiple text files in a directory. I want to have one single file that writes the 1st created file as first 2nd created file as 2nd data and so on ?

Kategorien

Mehr zu Data Import and Export finden Sie in Help Center und File Exchange

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by