Gaussian Process Regression:I can plot the graphs using "fitrgp", but can I get the mean μ(x) and standard deviation sigma�(x)?
3 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I can plot the graphs using "fitrgp", but can I get the mean μ(x) and standard deviation sigma(x)?
0 commentaires
Réponse acceptée
mizuki
le 8 Sep 2016
Modifié(e) : mizuki
le 8 Fév 2017
Yes. The first output argument of "resubPredict" is the mean and the second is the sigma. If you want to draw them, use errorbar.
% create samples
n = 10;
x = linspace(0.5,2.5,n)';
y = sin(10*pi.*x) ./ (2.*x)+(x-1).^4 + 1.5*rand(n,1);
% Gaussian Process Regression
gprMdl = fitrgp(x,y);
[ypred,ysd,yint] = resubPredict(gprMdl,'Alpha',0.01);
% draw samples and mean&variance
figure;
plot(x, y, 'o');
hold on;
errorbar(x, ypred,ysd)
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Gaussian Process Regression 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!