![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/176027/image.png)
How can I remove for loops?
조회 수: 2 (최근 30일)
이전 댓글 표시
Hello. I would like to remove the for loops from this script. Could anyone provide me information on how to do it? The loop takes a long time to run. Thank you!
n=12000;
resamples=5000;
Z=zeros(1,5);
Y=zeros(resamples,5);
for j=1:resamples
for k=1:n
r=randi(n);
Z=Z+B(r,:);
end
Y(j,:)=Z;
end
댓글 수: 1
채택된 답변
Matt J
2013년 10월 25일
idx=randi(n,n*resamples,1);
Y=sum(reshape(B(idx,:),n,[]),1);
Y=reshape(Y,resamples,[]);
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Loops and Conditional Statements에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!