finding the closest values in a set of data
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
basically i have 2 sets of data:
A = [4; 7; 13; 44; 55;];
B = 1; 3; 8; 9; 33; 45; 48; 53; 54; 66];
I want to compare every value in A to every value in B, and then have MATLAB figure out where the closest values of all those in A occur in B. So 4 is closest to 3, 7 is closest to 8, 13 is closest to 9, etc.
I want my output to be an index list in terms of B.. so basically i need:
index = [2; 3; 4; 6; 9]
Is this possible?
0 commentaires
Réponse acceptée
Sean de Wolski
le 9 Juin 2011
[junk,index] = min(bsxfun(@(x,y)abs(x-y),A,B'),[],2);
Of course it's possible!
0 commentaires
Plus de réponses (1)
Fangjun Jiang
le 9 Juin 2011
A = [4; 7; 13; 44; 55;];
B = [1; 3; 8; 9; 33; 45; 48; 53; 54; 66];
C=bsxfun(@minus,A,B');
[D,Index]=min(abs(C),[],2)
0 commentaires
Voir également
Catégories
En savoir plus sur Matrix Indexing 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!