Problem using 'dlmwrite' into .txt file which contains 19/20 digit intergers
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
Apashanka Das
il 10 Dic 2021
Commentato: Apashanka Das
il 11 Dic 2021
I have a csv file (id.txt) which contains two columns having 19/20 digit integers.
I am executing the following commands in matlab workspace :-
(1) load id.txt
(2) dlmwrite('id_new.txt',id,'delimiter','\t','precision','%19i')
After executing the above commands, the last 3/4 digits of 2nd column in the file 'id_new.txt' gets changed, although the 1st column remains as it is. Can anyone please help me in sort out this problem.
The screenshots of two files id.txt and id_new.txt are attached herewith.
0 Commenti
Risposta accettata
Chunru
il 10 Dic 2021
MATLAB double data type cannot hold so many digits in your imput data. It will round off the data to what-so-ever a double type can hold.
If you want to ensure that no information is lost, you can always read in the data as strings and then write the data as strings.
17 Commenti
Walter Roberson
il 10 Dic 2021
fid = fopen('A.txt');
A_data = cell2mat(textscan(fid, '%u64,%u64', 'headerlines',1));
fclose(fid)
fid = fopen('B.txt');
B_data = cell2mat(textscan(fid, '%u64', 'headerlines',0));
fclose(fid)
dlmwrite('id_new.txt',A_data, 'delimiter', '\t', 'precision', '%u')
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Text Files in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!