how to select the highest values form each column and set the other values to zero.
조회 수: 1 (최근 30일)
이전 댓글 표시
If
A=[0.1290 0.2880 0.0193 0.2064 0.5245 0.5067 0.0255 0.2789;
0.2721 0.3500 0.0916 0.0913 0.5780 0.4616 0.3746 0.4651;
0.2011 0.2672 0.3051 0.1836 0.5149 0.3960 0.3730 0.3996;
0.0610 0.0374 0.0366 0.0453 0.0633 0.2699 0.2800 0.2522]
I want to generate the matrix from A such that it should contain the highest two values present in each column and the rest of values should be set to zero and it should diaplay in the following manner.
A=
[0 0.2880 0 0.2064 0.5245 0.5067 0 0;
0.2721 0.3500 0.0916 0 0.5780 0.4616 0.3746 0.4651;
0.2011 0 0.3051 0.1836 0 0 0.3730 0.3996;
0 0 0 0 0 0 0 0]
Could anyone please help me on this.
댓글 수: 2
Raj
2019년 3월 29일
Looks pretty straight forward. However, can you first share what you have tried so far on this?
채택된 답변
Andrei Bobrov
2019년 3월 29일
편집: Andrei Bobrov
2019년 3월 29일
[m,n] = size(A);
[~,ii] = sort(A);
A(bsxfun(@plus,ii(1:end-2,:),(0:n-1)*m)) = 0;
or
[m,n] = size(A);
[~,ii] = sort(A);
A(ii(1:end-2,:) + (0:n-1)*m) = 0;
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Operators and Elementary Operations에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!