Hello, I need help with: Replace elements in Vector A with those of vector B of the same position, only if they meet a certain condition, otherwise replace by a zero. Thanks
조회 수: 3 (최근 30일)
이전 댓글 표시
I have Vectors A and B of the same length and a threshhold value:
Threshold = 4;
A = [3 7 1 3 10 3 4 1 5 5];
B = [5 3 6 1 6 3 5 4 9 4];
I want replace all values in A that are greater than threshold (A > Threshold) with values in B if they are less than the threshold (B < Threshold), otherwise make them zeros. In thi case, the new vector of A should be:
Thank you.
채택된 답변
Jon
2022년 8월 3일
편집: Jon
2022년 8월 3일
I like @Torsten's one liner and use of the multiplication times the logical zeros to null out the values where B is greater than the threshold. Alternatively, you could do it like this in two lines and the logic is a little more obvious
Threshold = 4;
A = [3 7 1 3 10 3 4 1 5 5];
B = [5 3 6 1 6 3 5 4 9 4];
A(A>Threshold) = B(A>Threshold)
A(A>Threshold) = 0 % in case any of the B's we put in are over the threshold set them to zero
댓글 수: 3
추가 답변 (2개)
Torsten
2022년 8월 3일
편집: Torsten
2022년 8월 3일
I kept the values in A unchanged that are less or equal to Threshold. If you also want to replace them by 0, take David's answer.
Threshold = 4;
A = [3 7 1 3 10 3 4 1 5 5];
B = [5 3 6 1 6 3 5 4 9 4];
A(A>Threshold) = B(A>Threshold).*(B(A>Threshold) < Threshold)
댓글 수: 0
David Hill
2022년 8월 3일
t=4;
A = [3 7 1 3 10 3 4 1 5 5];
B = [5 3 6 1 6 3 5 4 9 4];
idx=A>t&B<t;
A(idx)=B(idx);
A(~idx)=0
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Introduction to Installation and Licensing에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!