How to find the two minimum values ?
5 views (last 30 days)
Show older comments
Yan Ket on 22 Jun 2021
Commented: Yan Ket on 23 Jun 2021
i found a problem. Try to find the minimum position of both values. mycode:
col1 = x(:,1);
col2 = x(:,2);
n = 2;
val = zeros(n,1);
fr = zeros(n,1);
idA = zeros(n,1);
[val(i) , idA(i)] = min(col2); % Find the minimum and position of col2.
col2(idA(i)) = ; % Remove duplicates in first iteration in col2
fr = col1(idA);
final. I got the minimum 2 values but I didn't get the correct position.I got the same position from the last iteration.What could I do (to solve this)?
(I need the position in order to retrieve the values in the col1 variable.)
Joseph Cheng on 22 Jun 2021
well to remedy this you shouldn't "delete" the entry of the min point but stick in a large value or Nan and use nanmin(). by deleting the minimum in the for loop you're changing the indexing positioning each time as the order of the index is different and gets shorter with each loop. force the value to be huge or nan and it'll keep the correct index for the found minimum index
Find more on Matrices and Arrays in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!Start Hunting!