compute the repetition of a string in a text file
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Dear all, how i compute the repetition of a special string in a file txt for example the A.txt file have the following lines;
AAA 1
1
2
AAA 2
BBB 1
i would have the number of the AAA repetition which is 2
Thanks
0 Kommentare
Akzeptierte Antwort
Cedric
am 29 Mär. 2013
Bearbeitet: Cedric
am 29 Mär. 2013
Your best option for pattern matching is usually regular expressions (regexp).
In this particular situation where the pattern is simple, you can go for a simpler solutions though, as follows:
>> buffer = fileread('A.txt') ;
>> n = numel(strfind(buffer, 'AAA')) ;
Let me know if the pattern is indeed more complicated than a simple string, or if you must differentiate 'AAA' from 'AAAA' for example or avoid matching 'BAAABBB'.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Characters and Strings 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!