sort a matrix based on a maximum value in each row
조회 수: 2 (최근 30일)
이전 댓글 표시
I have a matrix that I first determined the max value in each row and its row index. now I need to sort the whole matrix in descendant order based on the maximums identified from the row with the larget max to the row with smallest max. example: A=[0 1 2 1 1; 0 4 3 1 2; 1 2 0.5 3 5] ( matrix is 3*5. so first I need to identify the Max in each row and its index. so now it [2; 4; 5] then I need to reorder the matrix/ all the rows based on descendant order, so first row is the one with the highest max: SortedMatrix=[ 1 2 0.5 3 5;0 4 3 1 2;0 1 2 1 1]; any suggestions? please.
댓글 수: 0
채택된 답변
Star Strider
2016년 2월 5일
This works:
A=[0 1 2 1 1; 0 4 3 1 2; 1 2 0.5 3 5];
Arowmax = max(A, [], 2);
[~,idx] = sort(Arowmax, 'descend');
SortedMatrix = A(idx,:)
SortedMatrix =
1 2 0.5 3 5
0 4 3 1 2
0 1 2 1 1
댓글 수: 2
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Shifting and Sorting Matrices에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!