Delete rows for specific elements from a matrix
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi
I'm trying to delete all rows if the second and third element is equal to zero. My if-else sentence doesn't work. Could you help me?
f = [2 5 4 3 2; 4 9 2 1 9; 2 0 0 0 0; 4 0 0 0 3; 9 7 12 14 42];
for i = 1:length(f)
if (f(i,2) == 0) && (f(i,3) == 0)
f(i,:) = [];
end
end
A = f; % Want the final result of A to look like this: A = [2 5 4 3 2; 4 9 2 1 9; 9 7 12 14 42]
1 Kommentar
Azzi Abdelmalek
am 20 Sep. 2013
The problem is with for i = 1:length(f), because f(i,:) = [] will decrease the length of f
Akzeptierte Antwort
Azzi Abdelmalek
am 20 Sep. 2013
Bearbeitet: Azzi Abdelmalek
am 20 Sep. 2013
f = [2 5 4 3 2; 4 9 2 1 9; 2 0 0 0 0; 4 0 0 0 3; 9 7 12 14 42];
f(all(~f(:,2:3),2),:)=[]
%or
f=f(any(f(:,2:3),2),:)
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Logical finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!