A simple scatter plot from a 2d matrix
171 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Emmanouil Karamousadakis
le 19 Oct 2021
Modifié(e) : Emmanouil Karamousadakis
le 20 Oct 2021
Hello, I couldnd find the answer anywhere :(
I am looking to make a simple scatter plot, with 1:5 range on both axes, that show a marker at the a1,a2 locations
Ideally, it wouldnt hurt to show the calculated f(a1,a2) value of each point, or maybe colorcode the markers but thats not crucial.
I tried quite a few: plot, plot3, surf, scatter, without success :(
Here is my code:
a1=rand(5,1)*3;
a2=rand(5,1)*3;
[x1, x2] = meshgrid(a1,a2);
ff= -sin(x1).*(sin(x1.^2./pi())).^2 -sin(x2).*(sin(2.*x2.^2./pi())).^2;
Thank you!!
0 commentaires
Réponse acceptée
Kelly Kearney
le 20 Oct 2021
Are any of these what you're looking for?
a1=rand(5,1)*3;
a2=rand(5,1)*3;
[x1, x2] = meshgrid(sort(a1),sort(a2)); % sort for for surf plot
ff= -sin(x1).*(sin(x1.^2./pi())).^2 -sin(x2).*(sin(2.*x2.^2./pi())).^2;
subplot(2,2,1);
plot(x1, x2, 'k.');
title('plot');
subplot(2,2,2);
plot3(x1, x2, ff, 'k.');
title('plot3');
subplot(2,2,3);
surf(x1,x2,ff);
title('surf');
subplot(2,2,4);
scatter(x1(:), x2(:), [], ff(:), 'filled');
title('scatter');
1 commentaire
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Annotations 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!