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randomly choose an element from each row in a matrix if it was equal to one

조회 수: 2 (최근 30일)
kurdistan mohsin
kurdistan mohsin 2022년 5월 26일
편집: Torsten 2022년 5월 26일
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
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

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