Compute distances between an element and all other elements of a matrix
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
pavlos
le 6 Avr 2018
Réponse apportée : David Fletcher
le 6 Avr 2018
Hello,
Please help me with the following:
I have a matrix M 150x4.
Ι need to calculate the distances (separately, the Euclidean and Cityblock) between the 1st element M(1,1) and all the others of M.
Also, I need to plot these distances.
Thank you very much.
Best,
Pavlos
1 commentaire
Rik
le 6 Avr 2018
What have you tried already? It is more useful for you to have your code improved than someone else doing your homework.
What defines the distance between element? And how do you want to plot the distance? Just as a 3D point cloud?
Réponse acceptée
David Fletcher
le 6 Avr 2018
If you have the statistics toolbox you can use pdist2
m=[1 1 1 1;2 2 2 2;3 3 3 3;4 4 4 4;5 5 5 5]
dist1=pdist2(m(1,:),m,'euclidean')
dist2=pdist2(m(1,:),m,'cityblock')
%plot index vs distance
plot(1:length(c),[dist1;dist2])
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Statistics and Machine Learning Toolbox 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!