How can I decrease the running time of this code?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
for i=1:1:f-1
Ux(i,:)=X(i+1,:)-X(i,:)
Uy(i,:)=Y(i+1,:)-Y(i,:)
Uz(i,:)=Z(i+1,:)-Z(i,:)
end
0 commentaires
Réponses (1)
Star Strider
le 14 Avr 2019
Ux = diff(X);
Uy = diff(Y);
Uz = diff(Z);
When I timed your code and diff with these matrices:
f = 1000;
X = rand(f, 500);
Y = rand(f, 500);
Z = rand(f, 500);
the results were:
Elapsed time is 0.633127 seconds. % Your Code
Elapsed time is 0.007197 seconds. % ‘diff’
The resulting matrices were the same.
Experiment to get the result you want.
0 commentaires
Voir également
Catégories
En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!