randomly choose an element from each row in a matrix if it was equal to one
조회 수: 2 (최근 30일)
이전 댓글 표시
i have the below matrix and i want to choose randomly one element from each row but only for the elements values equal to one and then save it in another matrix which will have the results (each row will have only one element equal to 1 ), anyone can help?
D= 1 1 0 1 1
1 1 1 1 1
0 0 0 0 0
1 1 1 1 1
1 0 1 0 1
0 0 1 0 0
0 0 0 0 0
0 0 1 0 0
0 0 0 0 0
0 1 0 0 0
답변 (1개)
Torsten
2022년 5월 26일
편집: Torsten
2022년 5월 26일
You mean
D= [1 1 0 1 1
1 1 1 1 1
0 0 0 0 0
1 1 1 1 1
1 0 1 0 1
0 0 1 0 0
0 0 0 0 0
0 0 1 0 0
0 0 0 0 0
0 1 0 0 0];
[N,M] = size(D);
DD = zeros(size(D));
for i = 1:N
idx = find(D(i,:)==1)
n = numel(idx);
if n ~= 0
in = randi(n);
DD(i,idx(in)) = 1.0;
end
end
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Creating and Concatenating Matrices에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!