get x values for given y from fit
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I have data points x and y. I fit a 3rd order polynomial through these points. Now i want to find the x- values from the polynomial for
y = 0.00:0.05:14.00
This is the code for the fit:
x = [5965 7867 9459 11763 13881 14794 16000 16619 20000];
y = [3.7 6.34 7.04 7.89 8.61 8.91 9.25 9.42 10.19];
[p,~,mu] = polyfit(x,y,3);
y2 = polyval(p,x,[],mu);
plot(x,y,'o')
hold on
plot(x,y2)
hold off
please tell how to get a matrix with all the x-values for the given y-values. I'm new to matlab and clueless
0 commentaires
Réponses (0)
Voir également
Catégories
En savoir plus sur Polynomials 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!