How to select matrix column from minimum row value

1 visualizzazione (ultimi 30 giorni)
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?

Risposta accettata

Sindar
Sindar il 18 Ago 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);

Più risposte (1)

Sara Boznik
Sara Boznik il 18 Ago 2020
Modificato: Sara Boznik il 18 Ago 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]

Categorie

Scopri di più su Multidimensional Arrays in Help Center e File Exchange

Prodotti


Release

R2018b

Community Treasure Hunt

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

Start Hunting!

Translated by