Plotting a function that is equal to 0.
26 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Michael Good
le 7 Déc 2013
Réponse apportée : Walter Roberson
le 7 Déc 2013
Hello, I'm doing some QDA and I need to plot a function that looks like the one below but I cannot seem to find a way to do it? Does anyone know how to plot it?
0.651 - 0.728(x_1) - 0.552(x_2) - 0.006(x_1 * x_2) - 0.071(x_1)^2 +.170 (x_2)^2 = 0.
The curve should look like the 2nd to last one from https://onlinecourses.science.psu.edu/stat557/book/export/html/35
Any hint or suggestion is much appreciated
0 commentaires
Réponse acceptée
sixwwwwww
le 7 Déc 2013
One way to plot this equation is using 'ezplot' as follow:
ezplot('0.651 - 0.728 * x - 0.552 * y - 0.006 * x * y - 0.071 * x^2 + .170 * y^2')
See following link for more information about ezplot:
0 commentaires
Plus de réponses (1)
Walter Roberson
le 7 Déc 2013
x_2 = 138/85 + (3/170) * x_1 +/- (1/170) * sqrt(-34494 + 125416 * x_1 + 12079 * x_1^2)
0 commentaires
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!