I need help arranging two vectors

1 vue (au cours des 30 derniers jours)
Colt Davis
Colt Davis le 15 Mar 2015
Commenté : Colt Davis le 15 Mar 2015
Suppose I have an area vector, composed of two vectors, length and width multiplied together. If I arrange the area from low to high how can I arrange my vector of length and width to match the entries used in the newly arranged area vector. Example: Area(1) = 200, Length(1) = 100, Width(1) = 2, after I sort vector Area, Area(1) moves to Area(3), how do I move Length(1) to Length(3) and also Width(1) to Width(3). Note, my array has 5000 entries.

Réponses (2)

David Young
David Young le 15 Mar 2015
[AreaSorted, idx] = sort(Area);
LengthSorted = Length(idx);
WidthSorted = Width(idx);

Guillaume
Guillaume le 15 Mar 2015
Use the second return value of sort which is the original index of the sorted values. Use it to reorder your width and height vector:
width = [5 10 15 20];
height = [14 11 8 5];
area = width .* height;
[area, origidx] = sort(area);
width = width(origidx)
height = height(origidx)
  1 commentaire
Colt Davis
Colt Davis le 15 Mar 2015
You are awesome!

Connectez-vous pour commenter.

Catégories

En savoir plus sur Shifting and Sorting Matrices dans Help Center et File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by