When L is not unique, how can I choose any of L

조회 수: 1 (최근 30일)
Muhammad Usman
Muhammad Usman 2018년 11월 22일
댓글: Guillaume 2018년 11월 22일
let say i have a vector
S=[ 7 1 15 13 2 14 6 10 12 11 4 8 3 9 5];
and after following certain procedure i got the indices of corresponding to the vector given i.e.,
L =
1 1 2 2 2 3 3 4 5 5 3 4 3 5 4
as it is clear from the indices that these are not unique, and I want to pick the maximum number by maximum index
I am getting wrong when i apply
z = max(L(:));
k = find(L==z,1,'last')
Thanks
  댓글 수: 3
Rik
Rik 2018년 11월 22일
If you want an index to the maximum value, you can also use the second output of max (you can use end on that vector to select the last one). That would be equivalent to the code you wrote, so it is unclear to me as well what you mean.
Muhammad Usman
Muhammad Usman 2018년 11월 22일
max (L(:)) = 5;
for that index there are three numbers in S i.e., 12, 11 and 9.
Let say i want to pick number 11

댓글을 달려면 로그인하십시오.

채택된 답변

madhan ravi
madhan ravi 2018년 11월 22일
편집: madhan ravi 2018년 11월 22일
[value,idx] = max(L)
s=S(L==value)
result=s(randi([1 numel(s)],1)) %picks any of L out of three numbers
  댓글 수: 3
madhan ravi
madhan ravi 2018년 11월 22일
편집: madhan ravi 2018년 11월 22일
Not really because you only get one output which is 12 the max but there has to be 9,11 and 12 in which finally one amongst these three numbers have to be picked.
Guillaume
Guillaume 2018년 11월 22일
Yes, max only returns the index of the first value equal to the maximum, not all of them.

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Logical에 대해 자세히 알아보기

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by