How to select matrix column from minimum row value
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Deon Cooper
am 18 Aug. 2020
Bearbeitet: Sara Boznik
am 18 Aug. 2020
I am currently doing a multi-part task, but the final step involves sorting a matrix I generated to find the lowest value in the row and selecting the whole column:
eg:
distance_to_point = [2, 3, 4, 5; 6.8, 2.9, 6.1, 6.7]
I need to pick the column that has the lowest value in the second row (the distance value), and still identify the point from which the distance is measured, so that I end up with;
new_point = [3; 2.9]
How would I do this?
0 Kommentare
Akzeptierte Antwort
Sindar
am 18 Aug. 2020
distance_to_point = [2, 3, 4, 5; 6.8, 2.9, 6.1, 6.7]
[~,idx] = min(distance_to_point(2,:));
new_point = distance_to_point(:,idx);
0 Kommentare
Weitere Antworten (1)
Sara Boznik
am 18 Aug. 2020
Bearbeitet: Sara Boznik
am 18 Aug. 2020
distance_to_point = [2, 3, 4, 5; 6.8, 2.9, 6.1, 6.7]
minima=min(distance_to_point(2,:))
[m,n]=find(distance_to_point==minima)
r=distance_to_point(1,n)
new_point=[minima; r]
0 Kommentare
Siehe auch
Kategorien
Mehr zu Shifting and Sorting Matrices finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!